Hey… what went wrong with Windows 10 UWP project templates – Package Restore Failed

Recently I just updated my development tools, the lovely Visual Studio 2017 version 15.4 from Preview 1 to Preview 2. And I wanted to create demo sample using Windows 10 UWP app project.

Visual Studio 2017 version 15.4 Preview 2

Everything works normally, until I wanted to create a new UWP app project. And here is what happen when I create a new UWP app using blank project template.

and of course, I choose the latest version which is the Windows Insider Preview SDK Build 16278.

And here is what I encounter… yikes…!

Package Restored Failed

Looking at the error message, it seems some of the package were not properly loaded when restoring the package. So I looked at the References.

Doing some small investigation and as I expected, where is that package named Microsoft.NETCore.UniversalWindowsPlatform. I have no idea why it isn’t installed. Well… I will just look for someone who can explain why the package is not properly loaded when restored.

However, my suspicion is because I updated my Visual Studio 2017 version 15.4 from Preview 1 to Preview 2 and I also added the Xamarin related cross-platform mobile development components from the Visual Studio Installer.


Hence, all I have to do just add the package, right!

And so I did. Awesome!

Once done, you can just Debug Run (F5) as usual. And et voilà!

Enjoy and happy coding!

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