Ismail Hassani

Check this [https://social.msdn.microsoft.com/Forums/en-US/5e69a7eb-b8f6-4ac8-a150-025e7d045842/uwp-application-is-not-installed?forum=WindowsIoT](https://social.msdn.microsoft.com/Forums/en-US/5e69a7eb-b8f6-4ac8-a150-025e7d045842/uwp-application-is-not-installed?forum=WindowsIoT) where i had the same issue. Maybe it helps

Check this [https://social.msdn.microsoft.com/Forums/en-US/5e69a7eb-b8f6-4ac8-a150-025e7d045842/uwp-application-is-not-installed?forum=WindowsIoT](https://social.msdn.microsoft.com/Forums/en-US/5e69a7eb-b8f6-4ac8-a150-025e7d045842/uwp-application-is-not-installed?forum=WindowsIoT) where i had the same issue. Maybe it helps

This is probably because your trying to change the observable collection from another thread than the UI thread. If you're using the onappearing without Task.Run it will work. Frankly, i...

if the app is a single window app, than this is ok. If you're using a multi-window app you probably should avoid using this mainthread dispatcher. instead use the following...

Weird that this issue is still unresolved. The TextBox has the same behavior.

@garrettpauls Actually I managed to fixed it with a workaround. the xaml: ``` ``` The code behind: ``` private void QueryTextBox_KeyDown(object sender, KeyRoutedEventArgs e) { if (e.Key == VirtualKey.Enter &&...

It looks like it's only installable on UAP 10.0.17763 instead of also later platforms. The strange thing is that the previous 6x version had support for UAP 10.0.16299.

There is still an issue. There is also an exclamation mark on this package with UAP 18362 and UAP 19041 projects Error occurred while restoring NuGet packages: Invalid restore input....

It works.