title: Getting error on every application I create for Windows Phone 7
body: <p>Whenever I create a new application in Visual Studio for Windows Phone 7, every time I build my application this error pops up:</p>
  
  <blockquote>
    <p>The application could not be launched
    for debugging. Ensure that the target
    device screen is unlocked and that
    application is installed.</p>
  </blockquote>
  
  <p>Due to this error my application is not running in the emulator. I tried reinstalling the SDK and Visual Studio but can't seem to solve this error.</p>