title: Creating Cocoa Touch Static Library with XCode4
body: <p>When creating a Cocoa Touch Static Library with XCode4, the .a file in the Products groups appear red and building doesnt fix this. Then, when adding this project to another project in the same workspace with Build Phases/Link Binary With Libraries, the build fails at linking.
  Any pointers?</p>
  
  <p>Edit:
  It looks like a problem with anything I build with XCode4, because no matter what project I build, the content of Products appears in red.</p>