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ERROR_MRM_DUPLICATE_ENTRY
ERROR_MRM_DUPLICATE_ENTRY means the resource index contains two entries that resolve to the same resource identity and qualifier set. The index cannot deterministically choose between duplicate definitions.
What to check
- Look for duplicate resource keys generated by source files, linked files, or merged project content.
- Check whether two files encode the same resource name and qualifier combination.
- Remove the duplicate at the build-input level and rebuild the PRI.
Microsoft: Resource Management System and PRI files
Microsoft: MakePri.exe command-line options
Microsoft: MakePri.exe configuration file
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