Found no csproj for file .github/workflows/build-pr.yml

Found no csproj for file 8.0/SkiaSharp/SkiaSharpDemos/README.md

Found no csproj for file 8.0/SkiaSharp/SkiaSharpDemos/SkiaSharpDemos.sln

Cannot convert null literal to non-nullable reference type.

Cannot convert null literal to non-nullable reference type.

Converting null literal or possible null value to non-nullable type.

Nullability of reference types in type of parameter 'sender' of 'void UglyAnalogClockPage.OnCanvasViewPaintSurface(object sender, SKPaintSurfaceEventArgs args)' doesn't match the target delegate 'EventHandler<SKPaintSurfaceEventArgs>' (possibly because of nullability attributes).

Dereference of a possibly null reference.

Nullability of reference types in type of parameter 'sender' of 'void SurfaceSizePage.OnCanvasViewPaintSurface(object sender, SKPaintSurfaceEventArgs args)' doesn't match the target delegate 'EventHandler<SKPaintSurfaceEventArgs>' (possibly because of nullability attributes).