C# – Visual Studio debug error about MSVSMON.EXE not appear to be running

cdebuggingvisual studiovisual studio 2012

I have a program which when I hit F5 to run the program it shows this error and doesn't run:

Error while trying to run the project, Unable to start program 'F:….`
The Microsoft Visual Studio Remote Debugging Monitor (MSVSMON.EXE) does not apear to be running on the remote computer …

This is while the project was compiling successfully before. Is there any project setting that should be set in a wrong way sometime!?

I'm using Visual Studio 2012 Update 2.

Best Answer

I've discovered that the reason is not about downgrading! It's about a tunneling software called "Proxifier". While it's running on the system, it causes the Visual Studio this problem.