title: Windows Phone application can not debug on real device
body: <p>I've developed an application for Windows Phone, and it runs well on emulator. But I want to debug the application on my phone, the samsung Omnia 7, so I changed the target from "Windows Phone Emulator" to "Windows Phone Device" in Visual Studio 2010, and hit the run button.</p>
  
  <p>Then I got the error message says: "The application could not be launched for debugging. Ensure that the target device screen is unlocked and that the application is installed."</p>
  
  <p>Well, I DID unlock the screen and actually, the application IS installed on my device, but the only problem is that, I can not debug it.</p>
  
  <p>I've been googling around, but no good. And the OS version of my rom is 7.10.7720.68, I'm using Omnia 7, which has already been verified with my developer ID.</p>
  
  <p>Anyone encountered with the same situation? Any advice?</p>
  
  <p>Thanks in advance!!!</p>