The type or namespace name 'Window' does not exist in the namespace 'Windows.UI.Xaml' (are you missing an assembly reference?)

Process completed with exit code 1.

A publish profile with the name 'win-x64.pubxml' was not found in the project. Set the PublishProfile property to a valid file name.

Windows.UI.Xaml.Controls.ContentPresenter.BackgroundTransition is not implemented in Uno (https://aka.platform.uno/notimplemented?m=Windows.UI.Xaml.Controls.ContentPresenter.BackgroundTransition) (https://aka.platform.uno/notimplemented)

Windows.UI.Xaml.BrushTransition is not implemented in Uno (https://aka.platform.uno/notimplemented?m=Windows.UI.Xaml.BrushTransition) (https://aka.platform.uno/notimplemented)

Windows.UI.Xaml.BrushTransition.Duration is not implemented in Uno (https://aka.platform.uno/notimplemented?m=Windows.UI.Xaml.BrushTransition.Duration) (https://aka.platform.uno/notimplemented)

Windows.UI.Xaml.Automation.AutomationProperties.SetAccessibilityView(Windows.UI.Xaml.DependencyObject, Windows.UI.Xaml.Automation.Peers.AccessibilityView) is not implemented in Uno (https://aka.platform.uno/notimplemented?m=Windows.UI.Xaml.Automation.AutomationProperties.SetAccessibilityView(Windows.UI.Xaml.DependencyObject, Windows.UI.Xaml.Automation.Peers.AccessibilityView)) (https://aka.platform.uno/notimplemented)