Cannot find .cs files for debugging .NET source code

Question

I tried setting up debugging the .NET source by following this MDSN walkthrough. The Symbol cache is setup properly, as is the check \'Enable .NET Framework source stepping\

Answer 1

Well, in my case I was not trying to debug the .Net framework, but I was getting the same error: Cannot find .cs files for debugging .NET source code. So I had to turn on the "Enable just my code" option under:
Tools -> Options -> Debugging -> General -> Enable just my Code

Per MS docs:

You can configure Visual Studio to automatically step over system, framework, and other non-user calls and collapse those calls in the call stack window.

https://docs.microsoft.com/en-us/visualstudio/debugger/just-my-code