title: ERROR: Cannot open source file " "
body: <p>I am running visual studio C++  and I have a header file "GameEngine.h" that I am trying to have another file see.  </p>
  
  <p>When I #include "GameEngine.h"  it gives me the error that it cannot open the source file.  I have no idea what to do.  I have done this literally a thousand times but for some reason this is now not working.  </p>