XML : WP8 Silverlight AppManifest.xml has incorrect input set - while using store certification kit

I have a problem with my first WP8 Silverlight App. Like in XAML app, I go Store->Certification Kit and... It's wrong once again and once again... My AppManifest.xml is here:

  <Deployment xmlns="http://schemas.microsoft.com/client/2007/deployment"          xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"  >    <Deployment.Parts>    </Deployment.Parts>  </Deployment>    

But It's default, so I don't know why it's wrong :(