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ERROR_SXS_INVALID_IDENTITY_ATTRIBUTE_NAME
ERROR_SXS_INVALID_IDENTITY_ATTRIBUTE_NAME — An assembly identity includes an attribute name that is not allowed by Side-by-Side identity rules.
The XML itself may be well-formed, but the identity contains a name that Side-by-Side activation does not recognize or allow. This is usually an invalid manifest generator output or a typo in a hand-authored manifest.
Use the identity schema and the trace output to correct the manifest at its source.
What to check
- Locate the exact assemblyIdentity element in the manifest named by sxstrace.
- Remove unsupported attributes instead of renaming them heuristically.
- Verify the corrected package on a clean test machine before deployment.
Microsoft: About Side-by-Side assemblies
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