title: Xcode - File not found but build successful
body: <p>In my project, I've include a full "shared" folder by link (not copy) that is outside my project folder.  </p>
  
  <p>In the .pch file, I have <code>#import "MyStandardHeader.h"</code></p>
  
  <p>My Build settings does not have any search path to the "shared" folder. </p>
  
  <p>In the "MyStandardHeader.h", I have <code>#import "NSMutableArrayCustom.h"</code> that is inside a subfolder of "shared".  </p>
  
  <p>I use in my code a NSMutableArrayCustom class.  </p>
  
  <p>I never include NSMutableArrayCustom.h </p>
  
  <p>I've clean the project, quitted XCode, launched it again, build, run on both iPhone and simulator : everything works fine, but I have a red compile error: <code>MyStandardHeader.h - No such file or directory</code></p>
  
  <p>I've tried in the build settings <code>Always search user path</code>at YES and NO, it's the same.</p>
  
  <p>What is the problem? Why do I have this error? How make it disappear?</p>