doc/articles/uno-notimplemented-types.md
If you're visiting this page after having clicked on a link in your application's debug log or exception view, this means you're using directly or indirectly an API that is not implemented.
Uno Platform is built around providing the full APIs provided by WinRT and WinUI, by replicating the available surface to be used in Uno Platform apps.
This WinUI and WinRT surface is very large. We covered a great portion of it since 2013, to the level of even publicly-listed enterprises deploying apps with it. To prioritize the remainder of unimplemented WinUI & WinRT API surface, we need the help of the community to add support for APIs that are marked as "Not Implemented".
Multiple directions are available:
The Uno Platform team offers professional support to get issues sorted out faster.