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STATUS_SXS_MANIFEST_TOO_BIG
The manifest exceeds the supported size limit
STATUS_SXS_MANIFEST_TOO_BIG means that the manifest is larger than the side-by-side loader accepts. This is a size-limit failure before the declared dependencies can be trusted as a usable activation context.
Measure the exact resource or external-file byte size that the loader reads. Counting visible XML lines is not enough because encoding, comments, generated metadata and embedded resource layout can affect the loaded artifact. Splitting unrelated application configuration into an assembly manifest is not automatically valid; keep the SxS schema and deployment model intact.
What to inspect
- Measure the final packaged manifest/resource, not the preprocessed source file.
- Remove redundant generated entries only when they are not required for assembly identity, dependencies or file metadata.
- Retest from a clean package so an older external manifest is not shadowing the revised embedded resource.
References
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