title: Android ADT version update throws error status
body: <p>I am writing this after struggling a lot with updating my ADT. I have tried using different eclipse, android sdk everything, but still it says me that Android SDK requires android developer toolkit version 17.0.0 or above, current version is 11.0.0.v201105251008-128486. </p>
  
  <p>I referred question mentioned here <a href="https://stackoverflow.com/questions/10074532/android-sdk-requires-android-developer-toolkit-version-17-0-0-or-above">Android SDK requires android developer toolkit version 17.0.0 or above</a></p>
  
  <p>But when I checked for updates again it displays a warning message stating that </p>
  
  <p><strong>Warning: You are installing software that contains unsigned content. The authenticity or validity of this software cannot be established. Do you want to continue with the installation?</strong> </p>
  
  <p>along with the OK and Cancel buttons.</p>
  
  <p>I got fed up of this, can any one tell me how to resolve this?</p>
  
  <p>Thank you</p>