Various errors after upgrading to 2020.1 Beta

Unity Engine
1

How would I resolve these?
I have already deleted the Libary folder, that didn’t help.

6066974--657359--Unbenannt - 1.jpg
6066974--657359--Unbenannt - 1.jpg1919×335 175 KB

2

Found the answer here: Problem when updating and changing the installation location

Deleting the manifest.json file did it for me.