Unable to use Windows Phone 10 Emulator

Question

I have Visual Studio 2015 Enterprise installed on my Window 10 development machine. I can create a new Universal Windows Platform app and run it both in the simulator as well as on the local machine.

However, when I select any of the 5 pre-installed Mobile Emulators and start debugging, I see the emulator app (XDE.exe) being launched, but then I immediately get an error dialog with the following message:

The emulator is unable to set some properties on the virtual machine: Couldn't change Display controller settings of the virtual machine: .... The configuration version of the Mobile Emulator 10.0.10240.0 WVGA 4 inch ... virtual machine does not support setting resolution type, horizontal resolution or vertical resolution.

When I open the Hyper-V manager, I can see 3 virtual machines installed. I can even start them and they will eventually show the Windows Phone 10 home screen in the expected resolution and orientation.

This happens when running Visual Studio 2015 either as a regular user or as an administrator.

Answer 1

Make sure your computer has an internet connection, and

If the Tools for Universal Windows Apps Development are still installed:

• Go to Programs and Features, select Visual Studio 2015, click Change.
• In Visual Studio setup, click Modify.
• Deselect the feature Tools for Universal Windows App Development.
• Select Tools for Universal Windows App Development again, and click Update.

If you have already uninstalled the Tools for Universal Windows Apps Development: Reinstall Tools for Universal Windows App Development. Or, take the following steps to reinstall the JavaScript project system and language service:

• Download the installer for your edition of Visual Studio, such as, vs_community.exe.
• Open a command window, and run the following command:
• vs_community.exe /modify /installselectableitems JavaScript_Hidden /passive
• Change directories to C:\Program Files (x86)\Microsoft Visual Studio 14.0\Common7\IDE

• Run the following commands:

   devenv /updateconfiguration
  
   devenv /clearcache