Weird compile error

Hey guys I am getting this weird error which I was not getting a few days ago and I cannot figure out how to do it.
To save time writing it out, there is an image of it below :stuck_out_tongue:

What OS and VS version are you using? Have you installed the Windows 8.1 SDK? Do you have any special characters in your Windows username (umlauts or what not)?

Windows 7 and Visual Studio 2013