title: android activity class does not exists?
body: <p>I have been developing a project in eclipse for an android app. An error which i frequently get is that of- activity class does not exist. But when i just save the manifest file once again the error vanishes and the program runs correctly. Why then do i get the same error again and again. ?</p>
  
  <p>Console error:</p>
  
  <pre><code>[2011-11-18 15:08:38 - link] Starting activity acb.abc.LinkActivity on device emulator-5554
  [2011-11-18 15:08:40 - link] ActivityManager: Starting: Intent { act=android.intent.action.MAIN cat=[android.intent.category.LAUNCHER] cmp=acb.abc/.LinkActivity }
  [2011-11-18 15:08:40 - link] New package not yet registered with the system. Waiting 3 seconds before next attempt.
  [2011-11-18 15:08:40 - link] ActivityManager: Error: Activity class {acb.abc/acb.abc.LinkActivity} does not exist.
  </code></pre>