Unit tests targeting framework 3.5 fail if they are using private accessor. The "xxxxLib.accessor" file is generated (a) At path: "\Test References\ xxxxLib.accessor". (b) Contains: just two lines 1. LibraryName.dll 2. DesktopI guess they (or any dependency of them) are compiled using a framework version < 3.5.
Visual Studio/Team Foundation Server/.NET Framework Tooling version
Steps to reproduce
Operating System Language