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The assembly '<assembly name>' could not be found

Complete error message: Ensure that the assembly is referenced. If the assembly is part of the current development project, ensure that the project has been built.

This error is similar to The type '<type name>' could not be found, but this error usually happens because of a metadata attribute.

To correct this error

  • Check that all assemblies used by attributes are referenced.

See Also

Tasks

How to: Add and Remove Solution Items

Reference

Assembly '<assembly name>' could not be opened

The assembly name '<assembly name>' is invalid