title: Eclipse: keep getting "ERROR: Application requires API version 15. Device API version is 14 (Android 4.0.2)."
body: <p>I've been testing an Android app on a device that had API version 15 installed. I now have to switch to a different device (a Samsung Galaxy Nexus, if it matters) that has version 14. Even though I changed "project build target" from Google APIs 15 to 14, I still get the following message when I try to execute the app on the new device:</p>
  
  <p><strong>ERROR: Application requires API version 15. Device API version is 14 (Android 4.0.2).</strong></p>
  
  <p>Cleaning all projects did not help. Restarting Eclipse did not help. I created a simple new test app with target=14 and it worked fine. </p>
  
  <p>Why changes to the old project are not taking effect?</p>
  
  <p>Thanks!</p>