Datahub : [ERROR] [c.h.d.e.l.i.DefaultExtensionLoaderService] Could not load extension carrierproduct-target

[former_member562109]

I am getting below error while datahub - tomcat server startup

2018-05-15 00:45:07,967 [ERROR] [c.h.d.e.l.i.DefaultExtensionLoaderService] Could not load extension carrierproduct-target com.hybris.datahub.validation.ValidationException: [ValidationFailure{FATAL, canonicalItemSource: "canonicalItemSource property in TargetItemTypeData{type=SalesProduct @ HybrisCore} refers missing type CanonicalProductBrands"}] at com.hybris.datahub.validation.AbstractValidator.validate(AbstractValidator.java:32) ~[datahub-service-6.3.0.7-RC1.jar:6.3.0.7-RC1] at com.hybris.datahub.service.impl.DefaultTargetItemMetadataService.newTargetItemMetadata(DefaultTargetItemMetadataService.java:49) ~[datahub-service-6.3.0.7-RC1.jar:6.3.0.7-RC1] at com.hybris.datahub.extension.load.impl.DefaultExtensionImportService.loadTargetItem(DefaultExtensionImportService.java:291) ~[datahub-extension-loader-6.3.0.7-RC1.jar:6.3.0.7-RC1] at com.hybris.datahub.extension.load.impl.DefaultExtensionImportService.loadTargetSystems(DefaultExtensionImportService.java:276) ~[datahub-extension-loader-6.3.0.7-RC1.jar:6.3.0.7-RC1] at com.hybris.datahub.extension.load.impl.DefaultExtensionImportService.loadExtension(DefaultExtensionImportService.java:94) ~[datahub-extension-loader-6.3.0.7-RC1.jar:6.3.0.7-RC1]

Could you please share some idea why the above error/exception is throwing .

[former_member562109]

getting error since not specify primaryKey