title: Cannot add android.support.v7 to my project build path
body: <p>I am trying to add android-support-v7-appcompat to my project build path:</p>
  
  <p>This is what I have done:
  Right-click on my own project -> build path -> configure build path -> choose Android on the left column and then click "Add". I choose "android-support-v7-appcompat". This name appears then in the right column of the table, on the left appears the path where the library is located: C:\Program Files\adt-bundle-windows-x86-20131030\sdk\extras\android\support\v7\appcompat. And it has a beautiful <strong>green check mark</strong> on the left!</p>
  
  <p>I click Apply or Ok.</p>
  
  <p>Then I go to this screen again, but though the path is still on the left in the table, there is a <strong>red cross</strong> on the left and a question mark, where "android-support-v7-appcompat" should have been. 
  I have done exactly what is described in <a href="http://developer.android.com/tools/support-library/setup.html">http://developer.android.com/tools/support-library/setup.html</a> (title "Adding libraries with resources").</p>
  
  <p>Has someone any idea????</p>