Solving GitHub fetchhead (mergeconflict) in Visual Studio 2013

I was getting the error:

An error occurred. Detailed Message:an error is raised by Libgit2. Category = Fetchhead (mergeconflict).
3 conflicts prevent checkout.

To resolve this problem, I installed the 3rd-party git command prompt tools and then you can open a Windows Git command promp T from Visual Studio 2013:http://msdn.microsoft.com/en-us/library/vstudio/dd286572.aspx#commands

When I entered the command:git pull, I got the real error cause:

After removing these files and entering the commands:

Git stash

Git pull

The error was resolved.

Solving GitHub fetchhead (mergeconflict) in Visual Studio 2013