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What does Windows error code 15121 (ERROR_MRM_FILEPATH_TOO_LONG) mean?

 
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ERROR_MRM_INVALID_RESOURCE_IDENTIFIER ERROR_MRM_UNSUPPORTED_DIRECTORY_TYPE

ERROR_MRM_FILEPATH_TOO_LONG

ERROR_MRM_FILEPATH_TOO_LONG means a path used while indexing or loading a resource exceeds the supported length for that resource-management operation.

What to check for ERROR_MRM_FILEPATH_TOO_LONG

  • Shorten the project-root path, generated-output path, or deeply nested resource folder names.
  • Check both the source path and the package-relative path generated by the build.
  • Rebuild the PRI after correcting paths; do not truncate names in the packaged output manually.

Microsoft: Resource Management System and PRI files

Microsoft: MakePri.exe command-line options

Microsoft: MakePri.exe configuration file

Where the result is returned

This result is Win32 system error 15121 (0x00003B11) from winerror.h. AllStat describes it as “Filepath too long.”


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