I had a Xamarin.Forms project for UWP, Android and iOS and I used a shared project (not .NET Standard). I now wanted to switch to .NET Standard and I mostly followed this guide, except I completely created a new Cross-Platform project (with .NET Standard as the sharing technology) and moved the files from my exisiting projects. I did use nugets not targeting .NET Standard and included the PackageTargetFallback just like in the video.
I use Xamarin.Forms 2.5 and .NET Standard 1.6 because I target Windows 10 Mobile and I did use a few interfaces/DependecyService to access special UWP features.
I moved all the appropriate files and checked the namespaces and I am now able to run my UWP app just fine like it was before. Trying to build the Android or iOS app will fail though and I get different errors, in total over 4000. I have installed the nuget packages I had before for Android but there seems to be no difference.
I have searched for some errors but I was not able to find a solution. Does anybody have an idea?