Recently, I've started learning to develop mobile apps using Xamarin.Forms through a book. I created an application "Hello", which had six projects, one Portable Shared Library project, one Android, one iOS and three Windows (two for Windows 8 and Windows 8 Phone and one for Windows 10 UWP). I was getting NuGet package updates, and my problems started from there.
The updates were mainly of the Android Support Libraries, but one was of Xamarin.Forms. All of them got updated except for this one. All of my Android Support Library packages are updated to v23.2.1. I got the following error while trying to update Xamarin.Forms:
So I decided not to update, and then went on to build the project (the only modification I made was in App.cs, changing
I got 119 errors from Hello.Droid and 2 warnings from Hello.iOS, 1 warning from Hello.WinPhone, 1 warning from Hello.Windows and 1 warning from Hello (Hello is my App name). Below are the screenshots:
Errors not visible in the screenshots have the code CS0117 and have description starting with: "'Resource.Stylable' does not contain... etc."
The initial errors you were getting are because Xamarin Forms only supports 18.104.22.168. With XF 2.2.0-pre1 they have updated to 22.214.171.124 but its still not the latest.
To remove these errors, I would uninstall all Google support packages and Xamarin Forms. Then just download Xamarin Forms and it will install the correct version.
The best option is to never to an Update All in Xamarin in the future.
Then after this is done the Resource.Designer.cs file might still cause some issues. As such, go to that file, delete everything inside of it and then rebuild the project again.
As for your licensing errors, make sure you update to the latest version of Xamarin.