我正在开发一个android/ios/uwp xamarin.forms应用程序。最近几周,我主要研究android/ios应用程序。现在,我想在uwp中重新启动我的应用程序并得到错误信息:
System.TypeLoadException
HResult=0x80131522
Message=Could not find Windows Runtime type 'Microsoft.Graphics.Canvas.UI.Xaml.CanvasImageSource'.
Source=Xamarin.Forms.Platform.UAP
StackTrace:
at Xamarin.Forms.Platform.UWP.ImageRenderer.GetDesiredSize(Double widthConstraint, Double heightConstraint)
at Xamarin.Forms.Platform.UWP.Platform.GetNativeSize(VisualElement element, Double widthConstraint, Double heightConstraint)
at Xamarin.Forms.Platform.UWP.WindowsBasePlatformServices.GetNativeSize(VisualElement view, Double widthConstraint, Double heightConstraint)
at Xamarin.Forms.VisualElement.OnSizeRequest(Double widthConstraint, Double heightConstraint)
at Xamarin.Forms.Image.OnSizeRequest(Double widthConstraint, Double heightConstraint)
at Xamarin.Forms.VisualElement.OnMeasure(Double widthConstraint, Double heightConstraint)
at Xamarin.Forms.VisualElement.GetSizeRequest(Double widthConstraint, Double heightConstraint)
at Xamarin.Forms.VisualElement.Measure(Double widthConstraint, Double heightConstraint, MeasureFlags flags)
at Xamarin.Forms.StackLayout.CalculateNaiveLayout(LayoutInformation layout, StackOrientation orientation, Double x, Double y, Double widthConstraint, Double heightConstraint)
at Xamarin.Forms.StackLayout.CalculateLayout(LayoutInformation layout, Double x, Double y, Double widthConstraint, Double heightConstraint, Boolean processExpanders)
at Xamarin.Forms.StackLayout.OnSizeRequest(Double widthConstraint, Double heightConstraint)
at Xamarin.Forms.VisualElement.OnMeasure(Double widthConstraint, Double heightConstraint)
at Xamarin.Forms.VisualElement.GetSizeRequest(Double widthConstraint, Double heightConstraint)
at Xamarin.Forms.Layout.GetSizeRequest(Double widthConstraint, Double heightConstraint)
at Xamarin.Forms.VisualElement.Measure(Double widthConstraint, Double heightConstraint, MeasureFlags flags)
at Xamarin.Forms.ScrollView.OnSizeRequest(Double widthConstraint, Double heightConstraint)
at Xamarin.Forms.VisualElement.OnMeasure(Double widthConstraint, Double heightConstraint)
at Xamarin.Forms.VisualElement.GetSizeRequest(Double widthConstraint, Double heightConstraint)
at Xamarin.Forms.Layout.GetSizeRequest(Double widthConstraint, Double heightConstraint)
at Xamarin.Forms.VisualElement.Measure(Double widthConstraint, Double heightConstraint, MeasureFlags flags)
at Xamarin.Forms.Layout.LayoutChildIntoBoundingRegion(VisualElement child, Rectangle region)
at Xamarin.Forms.Page.LayoutChildren(Double x, Double y, Double width, Double height)
at Xamarin.Forms.Page.UpdateChildrenLayout()
at Xamarin.Forms.Page.OnSizeAllocated(Double width, Double height)
at RA_Krypt.MainPage.OnSizeAllocated(Double width, Double height) in C:\Users\Christian\source\repos\Xamarin_RaKrypt\RA-Krypt\RA-Krypt\MainPage.xaml.cs:line 27
at Xamarin.Forms.Page.OnChildMeasureInvalidated(VisualElement child, InvalidationTrigger trigger)
at Xamarin.Forms.Page.OnChildMeasureInvalidated(Object sender, EventArgs e)
at Xamarin.Forms.VisualElement.InvalidateMeasureInternal(InvalidationTrigger trigger)
at Xamarin.Forms.VisualElement.set_IsNativeStateConsistent(Boolean value)
at Xamarin.Forms.Platform.UWP.VisualElementRenderer`2.OnControlLoaded(Object sender, RoutedEventArgs args)
我的应用程序根本无法启动。我已经重建了我的项目,重新启动了我的电脑,这有时有助于与Xamarin,但我仍然卡住。我需要做什么才能让我的应用程序再次工作?
