Xamarin forms UWP: Exception thrown: 'System.TypeLoadException' in System.Private.CoreLib.ni.dll

问题

Getting the following exception after updating xamarin forms.

Exception thrown: 'System.TypeLoadException' in System.Private.CoreLib.ni.dll An exception of type 'System.TypeLoadException' occurred in System.Private.CoreLib.ni.dll but was not handled in user code Could not load type 'Xamarin.Forms.Xaml.XamlResourceIdAttribute' from assembly 'Xamarin.Forms.Core, Version=2.0.0.0, Culture=neutral, PublicKeyToken=null'.

I have this problem after installing xamarin forms 3.1.0.912540 from 2.5.0.121934.

Screenshot adding below:

回答1:

The issue is already reported in the xamarin forums and the solution is to

• Clean all projects in solution
• close Visual Studio
• Remove all bin and obj folders from all projects (shared and device (Android, iOS, UWP) specific)
• Restart IDE, build the solution.

来源：https://stackoverflow.com/questions/53044549/xamarin-forms-uwp-exception-thrown-system-typeloadexception-in-system-privat