Unable to debug managed code using visual studio 2013 (“Cannot evaluate expression” error - am using debug build) (Note that VS 2012 works)

Question

I have .net application (GUI as well as PowerShell) built against 4.5. My OS is server 2012. When I attach my application to 2013 visual studio, the debugger is not working

Answer 1

We had this problem with PostSharp extension version 5.0.32 with VS2013 Update 5.

Our workaround was downgrade PostSharp extension to version 4.3.19 or disable it.