"Manifest parsing has failed." in Developer Portal

[karamem0]

I am using the Developer Portal app in Teams.

I got "Manifest parsing has failed." error when click "Preview in Teams" button.

Also I got "App does not have the required permissions for this operation." error after click "x" button.

I have no validation error in the manifest file.

How can I fix it?

[#2]

I can also confirm that the Developer Portal app in Teams browser shows exact same info as the Developer Portal at https://dev.teams.microsoft.com/ That's good and as expected :thumbs_up:. Have not compared with the Teams Desktop client yet. Sad to hear about the differences @Lukáš Nešpor :frowning_face: