FxCop indirect reference to System.Core version 2.0.5.0

I've got a project that uses Autofac, and the WebAPI integration

We run FxCop over our solution, and on opening autofac, I get the following:

The following indirectly-referenced assembly could not be found. This assembly is not required for analysis, however, without it, analysis results could be incomplete. This assemble was referenced by Autofac.dll

System.Core, Version=2.0.5.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e, Retargetable=Yes

This causes the following error on our CI server:

FxCop return code (516): PROJECT_LOAD_ERROR ASSEMBLY_REFERENCES_ERROR

Is there a way to tell FxCop to ignore this?

Solution

Had the same issue with AutoMapper 3.1.0 on our project. The real problem is an old version of FxCop. The last official release was FxCop 10.0, but new versions of FxCop have been bundled with Visual Studio since 2012. I just replaced the FxCop 10.0 with the version that can be found in:

C:\Program Files (x86)\Microsoft Visual Studio 11.0\Team Tools\Static Analysis Tools\FxCop

C:\Program Files (x86)\Microsoft Visual Studio 12.0\Team Tools\Static Analysis Tools\FxCop

and the problem was solved.