The “XamlCTask” task failed unexpectedly in Xamarin

Question

I am currently having a problem building my Xamarin.Forms solution. I\'m getting an error of The \"XamlCTask\" task failed unexpectedly. I tried looking at the

Answer 1

tl;dr:

disable XamlC on the failing Page

[XamlCompilationAttribute (XamlCompilationOptions.Skip)]
public partial class MyPageThrowing {}

or at the Assembly level

[assembly:XamlCompilationAttribute (XamlCompilationOptions.Skip)]

Long Story

An issue throwing the same exception and the same StackTrace had been fixed in the next (to date) version of xamarin.forms which should be 2.3.3-pre3 or 2.3.4.

The only way to know for sure would be to paste your failing Xaml page here, or even better, on http://bugzilla.xamarin.com.

I really encourage you to do so. If the issue is not fixed already. Either it's an issue in your Xaml and this needs a better exception being thrown, or it's an unsupported case in XamlC, and this require a fix.