title: Unable to Activate Windows Store App
body: <p>I installed a retail version of Windows 8 Pro.  I downloaded and installed Visual Studio Express 2012.  I asked for and received a developers certificate.  Then I tried to create a hello world app.</p>
  
  <p>From there I get a "Unable to Activate Windows Store App" message box when I try to debug the app.  Most commentary on the web says delete build directories.  This didn't work for me</p>
  
  <p>Does anyone have a solution for how to fix this and debug my app?</p>