Failed to install app app package due to unknown error !!!

[JD-V]

unable to install app package due to unknown error,

[ginami]

Hi @JD-V -- this channel is for specific feedback on our docs. Are you looking for support help or community help? Our dev support options, including community forums, are here: https://developer.microsoft.com/en-us/windows/support. If you have feedback on one of our docs pages, please let us know. Thank you!