Which assemblies conflict in "found conflict between different versions"?<>
This question already has an answer here:
- Resolving MSB3247 - Found conflicts between different versions of the same dependent assembly 14 answers
Build the solution and check the output window - you should be able to see in there.
The error list window (CTRL+W,E) should show which assemblies were in conflict. Failing that, the output window (CTRL+W,O) will show which of the conflicting assemblies was arbitrarily picked for the build.
Usually, double clicking the error takes you to the line causing problems. There you can check the method calls being called from referencing assemblies.
--Edit-- But, I agree with the last comment; link error does not throw on the particular line of code.