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ERROR_SXS_VERSION_CONFLICT
ERROR_SXS_VERSION_CONFLICT means that side-by-side binding encountered incompatible version requirements for a component already active in the process. This can arise through direct or transitive dependencies that appear compatible separately but cannot be activated together.
How to investigate
- Use a SideBySide trace to identify both assembly identities and the manifests that introduced them.
- Compare version, processor architecture, language, and policy information rather than comparing only DLL names.
- Remove duplicate or conflicting private assemblies from the package and keep dependency declarations consistent across modules.
Changing a manifest version to bypass the error is unsafe unless the replacement assembly is actually compatible with the application contract.
Microsoft: side-by-side assemblies
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