Unable to load the test container '{0}' or one of its dependencies. If you build your test project assembly as a 64 bit assembly, ...

Unable to load the test container '{0}' or one of its dependencies. If you build your test project assembly as a 64 bit assembly, it cannot be loaded. When you build your test project assembly, select "Any CPU" for the platform. To run your tests in 64 bit mode on a 64 bit processor, you must change your test settings in the Hosts tab to run your tests in a 32 bit process. Error details: {1}