I met a problem, every time I want to deploy my app again, I will encounter error:
"An exception of type 'System.IO.FileNotFoundException' occurred in DropNetRT.ni.DLL but was not handled in user code Additional information: Could not load file or assembly 'System.Net.Http.Phone, Version=2.0.5.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e' or one of its dependencies. The system cannot find the file specified."
I have to uninstall the app, and then deploy. But next deployment same error again.