title: <unknown>:0: error: opening import file for module 'Swift': File name too long
body: <p>I updated my XCode from 6.4 to XCode 7 and now I get this error:
  :0: error: opening import file for module 'Swift': File name too long</p>
  
  <p>Now I'm unable to compile my project does anyone has an idea why is this happening? It shows this error for all my Swift Files.</p>