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  <xs:element id="ero_CurrentIncomeTaxReceivable" abstract="false" name="CurrentIncomeTaxReceivable" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ero_DepositsAndOtherNonCurrentAssets" abstract="false" name="DepositsAndOtherNonCurrentAssets" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ero_EquityReserves" abstract="false" name="EquityReserves" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ero_OtherExpenseByFunctionShareBasedCompensation" abstract="false" name="OtherExpenseByFunctionShareBasedCompensation" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ero_WriteDownsOfExplorationAndEvaluationAssets" abstract="false" name="WriteDownsOfExplorationAndEvaluationAssets" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ero_ForeignExchangeGainLossIncludingExchangeDifferencesOnFairValueOfFinancialInstruments" abstract="false" name="ForeignExchangeGainLossIncludingExchangeDifferencesOnFairValueOfFinancialInstruments" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ero_MiningAndFacilitiesTransactionCosts" abstract="false" name="MiningAndFacilitiesTransactionCosts" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ero_AdjustmentsNoncashWorkingCapitalItems" abstract="false" name="AdjustmentsNoncashWorkingCapitalItems" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ero_AdvancePaymentReceived" abstract="false" name="AdvancePaymentReceived" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ero_CashPaymentsForFuturesContractsForwardContractsOptionContractsAndSwapContractsClassifiedAsOperatingActivities" abstract="false" name="CashPaymentsForFuturesContractsForwardContractsOptionContractsAndSwapContractsClassifiedAsOperatingActivities" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ero_ProvisionSettlementForDecommissioningRestorationAndRehabilitationCosts" abstract="false" name="ProvisionSettlementForDecommissioningRestorationAndRehabilitationCosts" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ero_ProceedsFromShortTermInvestmentsAndInterestReceived" abstract="false" name="ProceedsFromShortTermInvestmentsAndInterestReceived" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ero_ProceedsFromBorrowingsClassifiedAsFinancingActivitiesNet" abstract="false" name="ProceedsFromBorrowingsClassifiedAsFinancingActivitiesNet" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ero_PaymentsForOtherFinanceExpenses" abstract="false" name="PaymentsForOtherFinanceExpenses" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ero_ProceedsFromExerciseOfOptionsAndWarrants" abstract="false" name="ProceedsFromExerciseOfOptionsAndWarrants" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ero_NumberOfSharesIssuedNewIssues" abstract="false" name="NumberOfSharesIssuedNewIssues" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="ero_IncreaseDecreaseThroughIssuanceOfEquity" abstract="false" name="IncreaseDecreaseThroughIssuanceOfEquity" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ero_NumberOfShareOptionsAndWarrantsExercisedInShareBasedPaymentArrangement" abstract="false" name="NumberOfShareOptionsAndWarrantsExercisedInShareBasedPaymentArrangement" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="ero_IncreaseDecreaseThroughExerciseOfOptionsAndWarrantsEquity" abstract="false" name="IncreaseDecreaseThroughExerciseOfOptionsAndWarrantsEquity" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ero_NumberOfSharesSettledRestrictedShareUnits" abstract="false" name="NumberOfSharesSettledRestrictedShareUnits" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="ero_IncreaseDecreaseThroughShareBasedPaymentTransactionsSettlementOfRestrictedShareUnits" abstract="false" name="IncreaseDecreaseThroughShareBasedPaymentTransactionsSettlementOfRestrictedShareUnits" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ero_NumberOfSharesSettledPerformanceShareUnits" abstract="false" name="NumberOfSharesSettledPerformanceShareUnits" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="ero_IncreaseDecreaseThroughShareBasedPaymentTransactionsSettlementOfPerformanceShareUnits" abstract="false" name="IncreaseDecreaseThroughShareBasedPaymentTransactionsSettlementOfPerformanceShareUnits" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ero_DisclosureOfNatureOfOperationsTextBlock" abstract="false" name="DisclosureOfNatureOfOperationsTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="ero_DisclosureOfSummaryOfSignificantAccountingPoliciesExplanatory" abstract="false" name="DisclosureOfSummaryOfSignificantAccountingPoliciesExplanatory" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="ero_InventoryAbstract" abstract="true" name="InventoryAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="ero_ExplorationForAndEvaluationOfMineralResourcesAbstract" abstract="true" name="ExplorationForAndEvaluationOfMineralResourcesAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="ero_FinancialInstrumentsAbstract" abstract="true" name="FinancialInstrumentsAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="ero_RevenueFromContractsWithCustomersAbstract" abstract="true" name="RevenueFromContractsWithCustomersAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="ero_OtherProvisionsContingentLiabilitiesAndContingentAssetsAbstract" abstract="true" name="OtherProvisionsContingentLiabilitiesAndContingentAssetsAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="ero_ShareCapitalReservesOtherEquityInterestShareBasedPaymentArrangementsAndEarningsPerShareAbstract" abstract="true" name="ShareCapitalReservesOtherEquityInterestShareBasedPaymentArrangementsAndEarningsPerShareAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="ero_DisclosureOfShareCapitalReservesOtherEquityInterestShareBasedPaymentArrangementsAndEarningsPerShareTextBlock" abstract="false" name="DisclosureOfShareCapitalReservesOtherEquityInterestShareBasedPaymentArrangementsAndEarningsPerShareTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="ero_ChangesInForeignExchangeRatesAbstract" abstract="true" name="ChangesInForeignExchangeRatesAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="ero_IncomeTaxesAbstract" abstract="true" name="IncomeTaxesAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="ero_RelatedPartyAbstract" abstract="true" name="RelatedPartyAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="ero_SupplementalCashFlowsAbstract" abstract="true" name="SupplementalCashFlowsAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="ero_SubsequentEventsAbstract" abstract="true" name="SubsequentEventsAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="ero_DescriptionOfAccountingPolicyForBasisOfPresentationAndPrinciplesOfConsolidationPolicyTextBlock" abstract="false" name="DescriptionOfAccountingPolicyForBasisOfPresentationAndPrinciplesOfConsolidationPolicyTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="ero_DescriptionOfAccountingPolicyForUseOfEstimatesAndJudgmentsPolicyTextBlock" abstract="false" name="DescriptionOfAccountingPolicyForUseOfEstimatesAndJudgmentsPolicyTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="ero_DescriptionOfAccountingPolicyForNewAccountingPronouncementsPolicyTextBlock" abstract="false" name="DescriptionOfAccountingPolicyForNewAccountingPronouncementsPolicyTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="ero_DisclosureOfAccountingPolicyForTaxIncentivesPolicyTextBlock" abstract="false" name="DisclosureOfAccountingPolicyForTaxIncentivesPolicyTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="ero_DisclosureOfDetailedInformationAboutClassificationAndMeasurementOfFinancialAssetsAndLiabilitiesTableTextBlock" abstract="false" name="DisclosureOfDetailedInformationAboutClassificationAndMeasurementOfFinancialAssetsAndLiabilitiesTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="ero_DisclosureOfDetailedInformationAboutInventoriesTableTextBlock" abstract="false" name="DisclosureOfDetailedInformationAboutInventoriesTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="ero_DisclosureOfDetailedInformationAboutOtherCurrentAssetsTableTextBlock" abstract="false" name="DisclosureOfDetailedInformationAboutOtherCurrentAssetsTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="ero_ScheduleOfDepositsAndOtherNonCurrentAssetsTableTextBlock" abstract="false" name="ScheduleOfDepositsAndOtherNonCurrentAssetsTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="ero_DisclosureOfDetailedInformationAboutAccountsPayableAndAccruedLiabilitiesTableTextBlock" abstract="false" name="DisclosureOfDetailedInformationAboutAccountsPayableAndAccruedLiabilitiesTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="ero_ScheduleOfDeferredRevenueTableTextBlock" abstract="false" name="ScheduleOfDeferredRevenueTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="ero_DisclosureOfDetailedInformationAboutOtherNonCurrentLiabilitiesTableTextBlock" abstract="false" name="DisclosureOfDetailedInformationAboutOtherNonCurrentLiabilitiesTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="ero_DisclosureOfDetailedInformationOfCostOfSalesExplanatoryTableTextBlock" abstract="false" name="DisclosureOfDetailedInformationOfCostOfSalesExplanatoryTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="ero_DisclosureOfDetailedInformationAboutGeneralAndAdministrativeExpenseTableTextBlock" abstract="false" name="DisclosureOfDetailedInformationAboutGeneralAndAdministrativeExpenseTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="ero_DisclosureOfDetailedInformationAboutFinanceCostsTableTextBlock" abstract="false" name="DisclosureOfDetailedInformationAboutFinanceCostsTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="ero_DisclosureOfDetailedInformationAboutForeignExchangeGainLossTableTextBlock" abstract="false" name="DisclosureOfDetailedInformationAboutForeignExchangeGainLossTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="ero_DisclosureOfReconciliationOfAccountingProfitMultipliedByApplicableTaxRatesAndAverageEffectiveTaxRateTableTextBlock" abstract="false" name="DisclosureOfReconciliationOfAccountingProfitMultipliedByApplicableTaxRatesAndAverageEffectiveTaxRateTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="ero_DisclosureOfMajorComponentsOfTaxExpenseIncomeTableTextBlock" abstract="false" name="DisclosureOfMajorComponentsOfTaxExpenseIncomeTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="ero_DisclosureOfUnrecognizedDeductibleTemporaryDifferencesTableTextBlock" abstract="false" name="DisclosureOfUnrecognizedDeductibleTemporaryDifferencesTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="ero_ScheduleOfMaximumCreditRiskExposureTableTextBlock" abstract="false" name="ScheduleOfMaximumCreditRiskExposureTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="ero_DisclosureOfMaturityAnalysisForNonDerivativeFinancialLiabilitiesTableTextBlock" abstract="false" name="DisclosureOfMaturityAnalysisForNonDerivativeFinancialLiabilitiesTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="ero_DisclosureOfMaturityAnalysisForDerivativeFinancialLiabilitiesTableTextBlock" abstract="false" name="DisclosureOfMaturityAnalysisForDerivativeFinancialLiabilitiesTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="ero_DisclosureOfDetailedInformationAboutSupplementalCashFlowTableTextBlock" abstract="false" name="DisclosureOfDetailedInformationAboutSupplementalCashFlowTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="ero_MineraoCarabaSAMember" abstract="true" name="MineraoCarabaSAMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="ero_NXGoldSAMember" abstract="true" name="NXGoldSAMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="ero_MCSAMiningComplexMember" abstract="true" name="MCSAMiningComplexMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="ero_BoaEsperanaPropertyMember" abstract="true" name="BoaEsperanaPropertyMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="ero_XavantinaOperationsMember" abstract="true" name="XavantinaOperationsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="ero_MobileEquipmentAndOtherMember" abstract="true" name="MobileEquipmentAndOtherMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="ero_NumberOfOperatingMines" abstract="false" name="NumberOfOperatingMines" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="ero_CaraibaBrazilMember" abstract="true" name="CaraibaBrazilMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="ero_TucumaBrazilMember" abstract="true" name="TucumaBrazilMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="ero_XavantinaBrazilMember" abstract="true" name="XavantinaBrazilMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="ero_CorporateAndOtherSegmentMember" abstract="true" name="CorporateAndOtherSegmentMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ero_CopperMember" abstract="true" name="CopperMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="ero_GoldProductsAndServicesMember" abstract="true" name="GoldProductsAndServicesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ero_CostOfSalesProduction" abstract="false" name="CostOfSalesProduction" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ero_CostOfSalesDepreciationAndDepletionExpenseIncludingNetChangeInInventoryDepreciation" abstract="false" name="CostOfSalesDepreciationAndDepletionExpenseIncludingNetChangeInInventoryDepreciation" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ero_CostOfSalesSalesExpense" abstract="false" name="CostOfSalesSalesExpense" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ero_CostOfSalesOtherExpense" abstract="false" name="CostOfSalesOtherExpense" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ero_CapitalExpendituresForMineralPropertyPlantAndEquipmentExplorationAndEvaluationAssetsNet" abstract="false" name="CapitalExpendituresForMineralPropertyPlantAndEquipmentExplorationAndEvaluationAssetsNet" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ero_NumberOfSignificantCustomers" abstract="false" name="NumberOfSignificantCustomers" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="ero_CurrentNotesReceivable" abstract="false" name="CurrentNotesReceivable" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ero_CurrentAdvancesToEmployees" abstract="false" name="CurrentAdvancesToEmployees" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ero_MineralPropertiesMember" abstract="true" name="MineralPropertiesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="ero_EquipmentAndOtherAssetsMember" abstract="true" name="EquipmentAndOtherAssetsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="ero_DepositsOnProjectsMember" abstract="true" name="DepositsOnProjectsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="ero_MineClosureCostsMember" abstract="true" name="MineClosureCostsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="ero_AdditionsCapitalizedBorrowingCostPropertyPlantAndEquipment" abstract="false" name="AdditionsCapitalizedBorrowingCostPropertyPlantAndEquipment" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ero_PropertyPlantAndEquipmentDevelopmentCosts" abstract="false" name="PropertyPlantAndEquipmentDevelopmentCosts" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ero_FurnasProjectMember" abstract="true" name="FurnasProjectMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="ero_NumberOfPhasesOfProjectWork" abstract="false" name="NumberOfPhasesOfProjectWork" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="ero_FeasibilityStudyCompletionPhase2Period" abstract="false" name="FeasibilityStudyCompletionPhase2Period" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="ero_ExplorationDrillingPhaseOneArea" abstract="false" name="ExplorationDrillingPhaseOneArea" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:lengthItemType"/>
  <xs:element id="ero_ExplorationDrillingPhaseTwoArea" abstract="false" name="ExplorationDrillingPhaseTwoArea" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:lengthItemType"/>
  <xs:element id="ero_ExplorationDrillingPhaseThreeArea" abstract="false" name="ExplorationDrillingPhaseThreeArea" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:lengthItemType"/>
  <xs:element id="ero_NotesReceivable" abstract="false" name="NotesReceivable" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ero_DepositsAndOtherMiscellaneousAssetsNonCurrent" abstract="false" name="DepositsAndOtherMiscellaneousAssetsNonCurrent" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ero_LiabilitiesFromShareBasedPaymentTransactionsCurrent" abstract="false" name="LiabilitiesFromShareBasedPaymentTransactionsCurrent" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ero_SeniorNotesDue2030Member" abstract="true" name="SeniorNotesDue2030Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="ero_SeniorCreditFacilityMember" abstract="true" name="SeniorCreditFacilityMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="ero_CopperPrepaymentFacilityMember" abstract="true" name="CopperPrepaymentFacilityMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="ero_EquipmentFinanceLoansUSDMember" abstract="true" name="EquipmentFinanceLoansUSDMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="ero_EquipmentFinanceLoansEURMember" abstract="true" name="EquipmentFinanceLoansEURMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="ero_EquipmentFinanceLoansBRLMember" abstract="true" name="EquipmentFinanceLoansBRLMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="ero_BankLoanMCSAMember" abstract="true" name="BankLoanMCSAMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="ero_SecuredOvernightFinancingRateSOFRMember" abstract="true" name="SecuredOvernightFinancingRateSOFRMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="ero_BrazilianInterbankDepositRateCDIMember" abstract="true" name="BrazilianInterbankDepositRateCDIMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="ero_BorrowingsMaturityTerm" abstract="false" name="BorrowingsMaturityTerm" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="ero_BorrowingsPrincipal" abstract="false" name="BorrowingsPrincipal" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ero_BorrowingOtherMember" abstract="true" name="BorrowingOtherMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="ero_TotalBorrowingsMember" abstract="true" name="TotalBorrowingsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="ero_DeferredFinancingCostsNettingMember" abstract="true" name="DeferredFinancingCostsNettingMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="ero_BorrowingRedemptionPeriodAxis" abstract="true" name="BorrowingRedemptionPeriodAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/>
  <xs:element id="ero_BorrowingRedemptionPeriodDomain" abstract="true" name="BorrowingRedemptionPeriodDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="ero_BorrowingsRedemptionPeriodOneMember" abstract="true" name="BorrowingsRedemptionPeriodOneMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="ero_BorrowingsRedemptionPeriodTwoMember" abstract="true" name="BorrowingsRedemptionPeriodTwoMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="ero_EffectiveInterestRateMember" abstract="true" name="EffectiveInterestRateMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="ero_BorrowingsRedemptionPricePercentage" abstract="false" name="BorrowingsRedemptionPricePercentage" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="ero_BorrowingFacilitiesMaximumBorrowingCapacity" abstract="false" name="BorrowingFacilitiesMaximumBorrowingCapacity" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ero_BorrowingsUndrawnCommitmentFees" abstract="false" name="BorrowingsUndrawnCommitmentFees" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="ero_BorrowingCommitmentFeePercentage" abstract="false" name="BorrowingCommitmentFeePercentage" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="ero_BorrowingFacilitiesAccordionFeatureHigherBorrowingCapacityOption" abstract="false" name="BorrowingFacilitiesAccordionFeatureHigherBorrowingCapacityOption" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ero_ProceedsFromBorrowingNetOfFinancingCosts" abstract="false" name="ProceedsFromBorrowingNetOfFinancingCosts" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ero_NumberOfEqualMonthlyPaymentsBorrowings" abstract="false" name="NumberOfEqualMonthlyPaymentsBorrowings" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="ero_BorrowingsMonthlyPaymentCopperQuantity" abstract="false" name="BorrowingsMonthlyPaymentCopperQuantity" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:massFlowItemType"/>
  <xs:element id="ero_BorrowingsMonthlyRepaymentAmount" abstract="false" name="BorrowingsMonthlyRepaymentAmount" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ero_RoyalGoldMember" abstract="true" name="RoyalGoldMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="ero_Through2024Member" abstract="true" name="Through2024Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="ero_A2022Through2024Member" abstract="true" name="A2022Through2024Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="ero_ContractLiabilityAdvancePaymentsReceived" abstract="false" name="ContractLiabilityAdvancePaymentsReceived" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ero_ContractLiabilitiesQuantityOfGoldProducedPercentage" abstract="false" name="ContractLiabilitiesQuantityOfGoldProducedPercentage" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="ero_ContractLiabilitiesQuantityRequiredToBeDelivered" abstract="false" name="ContractLiabilitiesQuantityRequiredToBeDelivered" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="ero_TransactionPriceAllocatedToRemainingPerformanceObligationsPercentageOfPrevailingSpotPrice" abstract="false" name="TransactionPriceAllocatedToRemainingPerformanceObligationsPercentageOfPrevailingSpotPrice" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="ero_PerformanceObligationsQuantityRequiredToBeReceived" abstract="false" name="PerformanceObligationsQuantityRequiredToBeReceived" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="ero_RevenueFromContractsWithCustomerQuantitySold" abstract="false" name="RevenueFromContractsWithCustomerQuantitySold" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:massFlowItemType"/>
  <xs:element id="ero_AccretionOfContractsLiabilities" abstract="false" name="AccretionOfContractsLiabilities" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ero_AmortizationOfContractLiabilities" abstract="false" name="AmortizationOfContractLiabilities" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ero_RevenueAverageCashConsideration" abstract="false" name="RevenueAverageCashConsideration" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:monetaryPerMassItemType"/>
  <xs:element id="ero_RevenueFromContractsWithCustomerCumulativeQuantityDelivered" abstract="false" name="RevenueFromContractsWithCustomerCumulativeQuantityDelivered" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="ero_AmortizationOfContractLiabilitiesChangeInEstimate" abstract="false" name="AmortizationOfContractLiabilitiesChangeInEstimate" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ero_IncreaseDecreaseThroughChangeInEstimatesOtherProvisions" abstract="false" name="IncreaseDecreaseThroughChangeInEstimatesOtherProvisions" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ero_DecreaseThroughSettlementOfLiabilitiesOtherProvisions" abstract="false" name="DecreaseThroughSettlementOfLiabilitiesOtherProvisions" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ero_InflationFactorMeasurementInputMember" abstract="true" name="InflationFactorMeasurementInputMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="ero_NonCurrentValueAddedTaxAndOtherTaxesPayables" abstract="false" name="NonCurrentValueAddedTaxAndOtherTaxesPayables" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ero_NoncurrentDividendsPayableToNoncontrollingInterest" abstract="false" name="NoncurrentDividendsPayableToNoncontrollingInterest" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ero_OtherNonCurrentMiscellaneousLiabilities" abstract="false" name="OtherNonCurrentMiscellaneousLiabilities" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ero_StockIssuedPricePerShare" abstract="false" name="StockIssuedPricePerShare" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types1:perShareItemType"/>
  <xs:element id="ero_ShareBasedPaymentOptionMember" abstract="true" name="ShareBasedPaymentOptionMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ero_RangeOneOfExercisePricesForOutstandingShareOptionsMember" abstract="true" name="RangeOneOfExercisePricesForOutstandingShareOptionsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="ero_RangeTwoOfExercisePricesForOutstandingShareOptionsMember" abstract="true" name="RangeTwoOfExercisePricesForOutstandingShareOptionsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="ero_RangeThreeOfExercisePricesForOutstandingShareOptionsMember" abstract="true" name="RangeThreeOfExercisePricesForOutstandingShareOptionsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="ero_RangeFourOfExercisePricesForOutstandingShareOptionsMember" abstract="true" name="RangeFourOfExercisePricesForOutstandingShareOptionsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="ero_ForfeitureRateShareOptionsGranted" abstract="false" name="ForfeitureRateShareOptionsGranted" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="ero_PerformanceShareUnitsMember" abstract="true" name="PerformanceShareUnitsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="ero_NumberOfOtherEquityInstrumentsSettledInShareBasedPaymentArrangement" abstract="false" name="NumberOfOtherEquityInstrumentsSettledInShareBasedPaymentArrangement" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="ero_AccountsPayableAndAccruedLiabilitiesIFRSMember" abstract="true" name="AccountsPayableAndAccruedLiabilitiesIFRSMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="ero_NumberOfCommonSharesToBeReceivedInShareBasedPaymentArrangement" abstract="false" name="NumberOfCommonSharesToBeReceivedInShareBasedPaymentArrangement" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:decimalItemType"/>
  <xs:element id="ero_VestingRequirementsForShareBasedPaymentArrangementVestingPeriod" abstract="false" name="VestingRequirementsForShareBasedPaymentArrangementVestingPeriod" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="ero_VestingRequirementsForShareBasedPaymentArrangementVestingPercentage" abstract="false" name="VestingRequirementsForShareBasedPaymentArrangementVestingPercentage" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="ero_FairValueOfSharesFromShareBasedPaymentTransactions" abstract="false" name="FairValueOfSharesFromShareBasedPaymentTransactions" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ero_DeferredShareUnitsMember" abstract="true" name="DeferredShareUnitsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="ero_WeightedAverageFairValuePriceEquityInstrumentsGrantedInShareBasedPaymentArrangement" abstract="false" name="WeightedAverageFairValuePriceEquityInstrumentsGrantedInShareBasedPaymentArrangement" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:perShareItemType"/>
  <xs:element id="ero_OtherEquityInstrumentsGrantedInShareBasedPaymentArrangementGrantDateFairValue" abstract="false" name="OtherEquityInstrumentsGrantedInShareBasedPaymentArrangementGrantDateFairValue" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ero_DilutiveEffectOfShareUnitsOnNumberOfOrdinaryShares" abstract="false" name="DilutiveEffectOfShareUnitsOnNumberOfOrdinaryShares" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="ero_InstrumentsWithPotentialFutureDilutiveEffectNotIncludedInCalculationOfDilutedEarningsPerShareAxis" abstract="true" name="InstrumentsWithPotentialFutureDilutiveEffectNotIncludedInCalculationOfDilutedEarningsPerShareAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/>
  <xs:element id="ero_InstrumentsWithPotentialFutureDilutiveEffectNotIncludedInCalculationOfDilutedEarningsPerShareDomain" abstract="true" name="InstrumentsWithPotentialFutureDilutiveEffectNotIncludedInCalculationOfDilutedEarningsPerShareDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="ero_StockUnitsMember" abstract="true" name="StockUnitsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="ero_InstrumentsWithPotentialFutureDilutiveEffectNotIncludedInCalculationOfDilutedEarningsPerShare" abstract="false" name="InstrumentsWithPotentialFutureDilutiveEffectNotIncludedInCalculationOfDilutedEarningsPerShare" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="ero_DilutiveEffectOfWarrantsOnNumberOfOrdinaryShares" abstract="false" name="DilutiveEffectOfWarrantsOnNumberOfOrdinaryShares" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="ero_InternationalMember" abstract="true" name="InternationalMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="ero_ConcentrateSalesMember" abstract="true" name="ConcentrateSalesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ero_DoreSalesMember" abstract="true" name="DoreSalesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ero_RevenueAdjustments" abstract="false" name="RevenueAdjustments" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ero_RevenueFinalSalesPricePeriodAfterShipment" abstract="false" name="RevenueFinalSalesPricePeriodAfterShipment" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="ero_CostOfSalesMaterials" abstract="false" name="CostOfSalesMaterials" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ero_CostOfSalesWagesAndSalaries" abstract="false" name="CostOfSalesWagesAndSalaries" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ero_CostOfSalesContractedServices" abstract="false" name="CostOfSalesContractedServices" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ero_CostOfSalesMaintenanceCosts" abstract="false" name="CostOfSalesMaintenanceCosts" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ero_CostOfSalesUtilitiesExpense" abstract="false" name="CostOfSalesUtilitiesExpense" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ero_CostOfSalesOther" abstract="false" name="CostOfSalesOther" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ero_CostOfSalesChangeInInventoryExcludingDepreciationAndDepletion" abstract="false" name="CostOfSalesChangeInInventoryExcludingDepreciationAndDepletion" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ero_CostOfSalesDepreciationAndDepletionExpense" abstract="false" name="CostOfSalesDepreciationAndDepletionExpense" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ero_CostOfSalesChangeInInventoryDepreciationAndDepletion" abstract="false" name="CostOfSalesChangeInInventoryDepreciationAndDepletion" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ero_SalariesAndConsultingFees" abstract="false" name="SalariesAndConsultingFees" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ero_IncentivePayments" abstract="false" name="IncentivePayments" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ero_OtherGeneralAndAdministrativeExpense" abstract="false" name="OtherGeneralAndAdministrativeExpense" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ero_InterestExpenseOnBorrowingsExcludingCapitalizedAmount" abstract="false" name="InterestExpenseOnBorrowingsExcludingCapitalizedAmount" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ero_AccretionOfMineClosuresAndRehabilitationProvisions" abstract="false" name="AccretionOfMineClosuresAndRehabilitationProvisions" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ero_OtherFinanceCostGainLossOnFairValueAdjustmentsOfAccountsReceivable" abstract="false" name="OtherFinanceCostGainLossOnFairValueAdjustmentsOfAccountsReceivable" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ero_CommitmentFees" abstract="false" name="CommitmentFees" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ero_ForeignExchangeLossOnDebt" abstract="false" name="ForeignExchangeLossOnDebt" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ero_GainsLossesOnFinancialInstrumentsAtFairValueThroughProfitOrLoss" abstract="false" name="GainsLossesOnFinancialInstrumentsAtFairValueThroughProfitOrLoss" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ero_GainsLossesOnFinancialInstrumentsMeasuredAtFairValueThroughOtherComprehensiveIncome" abstract="false" name="GainsLossesOnFinancialInstrumentsMeasuredAtFairValueThroughOtherComprehensiveIncome" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ero_OtherAdjustmentsForForeignExchangeGainsLosses" abstract="false" name="OtherAdjustmentsForForeignExchangeGainsLosses" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ero_TaxEffectOfItemsNotTaxableInDeterminingTaxableProfitTaxLoss" abstract="false" name="TaxEffectOfItemsNotTaxableInDeterminingTaxableProfitTaxLoss" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ero_TaxEffectOfChangeInTemporaryDifferencesNotPreviouslyRecognized" abstract="false" name="TaxEffectOfChangeInTemporaryDifferencesNotPreviouslyRecognized" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ero_TaxEffectOfChangeInTaxLaw" abstract="false" name="TaxEffectOfChangeInTaxLaw" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ero_TaxExpenseIncomeIncludingIncomeTaxRelatingToComponentsOfOtherComprehensiveIncome" abstract="false" name="TaxExpenseIncomeIncludingIncomeTaxRelatingToComponentsOfOtherComprehensiveIncome" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ero_DecommissioningRestorationAndRehabilitationCostsRelatedTemporaryDifferencesMember" abstract="true" name="DecommissioningRestorationAndRehabilitationCostsRelatedTemporaryDifferencesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="ero_FinancingCostsRelatedTemporaryDifferencesMember" abstract="true" name="FinancingCostsRelatedTemporaryDifferencesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="ero_PropertyPlantAndEquipmentRelatedTemporaryDifferencesMember" abstract="true" name="PropertyPlantAndEquipmentRelatedTemporaryDifferencesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="ero_DebtRelatedTemporaryDifferencesMember" abstract="true" name="DebtRelatedTemporaryDifferencesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="ero_OperatingLossCarryforwardsTaxes" abstract="false" name="OperatingLossCarryforwardsTaxes" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ero_DeductibleTemporaryDifferencesForWhichNoDeferredTaxAssetIsRecognized" abstract="false" name="DeductibleTemporaryDifferencesForWhichNoDeferredTaxAssetIsRecognized" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ero_LoansAndBorrowingsMember" abstract="true" name="LoansAndBorrowingsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="ero_ContractTypeCommodityMember" abstract="true" name="ContractTypeCommodityMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ero_NotesReceivableInstallmentPeriod" abstract="false" name="NotesReceivableInstallmentPeriod" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="ero_NotesReceivableStatedInterestRate" abstract="false" name="NotesReceivableStatedInterestRate" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="ero_AllowanceAccountForCreditLossesOfFinancialAssetsIncreaseDecrease" abstract="false" name="AllowanceAccountForCreditLossesOfFinancialAssetsIncreaseDecrease" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ero_CashAndCashEquivalentsIFRSMember" abstract="true" name="CashAndCashEquivalentsIFRSMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="ero_NotesReceivableIFRSMember" abstract="true" name="NotesReceivableIFRSMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="ero_DepositsAndOtherNonCurrentAssetsMember" abstract="true" name="DepositsAndOtherNonCurrentAssetsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="ero_OtherNonCurrentLiabilitiesMember" abstract="true" name="OtherNonCurrentLiabilitiesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="ero_ForeignExchangeCollarContractsMember" abstract="true" name="ForeignExchangeCollarContractsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="ero_ForwardExchangeForwardMember" abstract="true" name="ForwardExchangeForwardMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="ero_GoldHedgeMember" abstract="true" name="GoldHedgeMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ero_WeightedAverageForwardPrice" abstract="false" name="WeightedAverageForwardPrice" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:decimalItemType"/>
  <xs:element id="ero_DerivativeInstrumentNonmonetaryNotionalAmount" abstract="false" name="DerivativeInstrumentNonmonetaryNotionalAmount" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:decimalItemType"/>
  <xs:element id="ero_DerivativeWeightedAveragePricePerOunce" abstract="false" name="DerivativeWeightedAveragePricePerOunce" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:monetaryPerMassItemType"/>
  <xs:element id="ero_DerivativeWeightedAverageForwardPricePerOunce" abstract="false" name="DerivativeWeightedAverageForwardPricePerOunce" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:decimalItemType"/>
  <xs:element id="ero_CurrencyRiskUSDollarAndEurosMember" abstract="true" name="CurrencyRiskUSDollarAndEurosMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="ero_CurrencyRiskBrazilianRealToUSDollarMember" abstract="true" name="CurrencyRiskBrazilianRealToUSDollarMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="ero_IntercompanyLoanMember" abstract="true" name="IntercompanyLoanMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="ero_OtherAssetsCurrentMember" abstract="true" name="OtherAssetsCurrentMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="ero_SensitivityAnalysisForTypesOfMarketRiskReasonablyPossibleChangeInRiskVariable10Percent" abstract="false" name="SensitivityAnalysisForTypesOfMarketRiskReasonablyPossibleChangeInRiskVariable10Percent" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="ero_SensitivityAnalysisForTypesOfMarketRiskReasonablyPossibleChangeInRiskVariable20Percent" abstract="false" name="SensitivityAnalysisForTypesOfMarketRiskReasonablyPossibleChangeInRiskVariable20Percent" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="ero_SensitivityAnalysisForTypesOfMarketRiskReasonablyPossibleChangeInRiskVariableImpactOnPreTaxEarnings" abstract="false" name="SensitivityAnalysisForTypesOfMarketRiskReasonablyPossibleChangeInRiskVariableImpactOnPreTaxEarnings" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ero_SensitivityAnalysisForTypesOfMarketRiskReasonablyPossibleChangeInRiskVariableImpactOf20PercentChangeOnPreTaxEarnings" abstract="false" name="SensitivityAnalysisForTypesOfMarketRiskReasonablyPossibleChangeInRiskVariableImpactOf20PercentChangeOnPreTaxEarnings" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ero_DerivativeHedgingInstrumentsLiabilityAtFairValue" abstract="false" name="DerivativeHedgingInstrumentsLiabilityAtFairValue" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ero_DerivativeHedgingInstrumentsAssetAtFairValue" abstract="false" name="DerivativeHedgingInstrumentsAssetAtFairValue" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ero_SensitivityAnalysisForTypesOfMarketRiskReasonablyPossibleChangeInRiskVariablePercent" abstract="false" name="SensitivityAnalysisForTypesOfMarketRiskReasonablyPossibleChangeInRiskVariablePercent" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="ero_DerivativeFinancialAssetQuantity" abstract="false" name="DerivativeFinancialAssetQuantity" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:massItemType"/>
  <xs:element id="ero_DerivateAverageFloorPricePerOunce" abstract="false" name="DerivateAverageFloorPricePerOunce" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:decimalItemType"/>
  <xs:element id="ero_DerivativeAverageCapPrice" abstract="false" name="DerivativeAverageCapPrice" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:decimalItemType"/>
  <xs:element id="ero_SensitivityAnalysisForTypesOfMarketRiskReasonablyPossibleChangeInRiskVariableImpactOfChangeOnPreTaxEarnings" abstract="false" name="SensitivityAnalysisForTypesOfMarketRiskReasonablyPossibleChangeInRiskVariableImpactOfChangeOnPreTaxEarnings" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ero_AdjustmentsForChangesInIncreaseDecreaseInOperatingCapitalAbstract" abstract="true" name="AdjustmentsForChangesInIncreaseDecreaseInOperatingCapitalAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="ero_ContractWithCustomerLiabilityIncreaseDecrease" abstract="false" name="ContractWithCustomerLiabilityIncreaseDecrease" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ero_NonCashInvestingAndFinancingItemsAbstract" abstract="true" name="NonCashInvestingAndFinancingItemsAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="ero_AdditionsThroughLeasesPropertyPlantAndEquipment" abstract="false" name="AdditionsThroughLeasesPropertyPlantAndEquipment" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ero_AdjustmentsForIncreaseDecreaseInAccountsPayableRelatedToCapitalExpenditures" abstract="false" name="AdjustmentsForIncreaseDecreaseInAccountsPayableRelatedToCapitalExpenditures" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ero_ChangeInEstimateOfProvisionForDecommissioningRestorationAndRehabilitationCosts" abstract="false" name="ChangeInEstimateOfProvisionForDecommissioningRestorationAndRehabilitationCosts" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ero_NonCashOperatingActivitiesAbstract" abstract="true" name="NonCashOperatingActivitiesAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="ero_SettlementOfIncomeTaxesPayableWithValueAddedTaxRecoverable" abstract="false" name="SettlementOfIncomeTaxesPayableWithValueAddedTaxRecoverable" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ero_MiningAndOtherContingentLiabilityMember" abstract="true" name="MiningAndOtherContingentLiabilityMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="ero_NumberOfClaimsContingentLiabilities" abstract="false" name="NumberOfClaimsContingentLiabilities" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
</xs:schema>
