What does Windows error code 15139 (ERROR_MRM_AUTOMERGE_ENABLED) mean?

 
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ERROR_MRM_INDETERMINATE_QUALIFIER_VALUE ERROR_MRM_TOO_MANY_RESOURCES

ERROR_MRM_AUTOMERGE_ENABLED

ERROR_MRM_AUTOMERGE_ENABLED indicates that the PRI was built with AutoMerge enabled. Microsoft documents that AutoMerge is not recommended for normal .appx package use.

Check the MakePri configuration and build pipeline that produced the PRI rather than changing runtime lookup code. If AutoMerge was enabled unintentionally, rebuild the resource index with the packaging model expected by the application.

What to check

  • Check the MakePri build command and remove the /AutoMerge option for ordinary app-package builds.
  • Rebuild the base PRI and any resource packs from a consistent configuration.
  • Use resource-pack or versioned PRI workflows only when they match the intended deployment model.

Microsoft: Resource Management System and PRI files

Microsoft: MakePri.exe command-line options

Microsoft: MakePri.exe configuration file


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