Visual Studio 2013 (XAML?) Designer crash on all Windows Phone projects even after aquiring developer license

Question

My designer started to crash, even on clean projects. The error message is as follows:

System.Exception
Package failed updates, dependency or conflict validation         


        

Answer 1

It looks like you are missing some packages, you need to look into Nuget and see what packages are missing. Or with NuGet you can restore all packages in the solution using the command line.

nuget restore YourSolution.sln

Or Reinstall all packages in ALL PROJECTS of the current solution:

Update-Package -Reinstall

Reinstall all packages in SPECIFIC PROJECT of the current solution

Update-Package -ProjectName 'YourProjectNameGoesHere' -Reinstall