Install failed: Validation Failed

Unity Engine
51

I managed to make it work on on Linux (Ubuntu 20.04) with Unity Hub 3.1.2 !

You can access the log file at Top left menu > Troubleshooting > Open log folder, and then run in a terminal cat info-log.json | grep Error, it will show you what happened

In my case, I had to change ownership of some folders (credits to LocalNoob in this thread Unity Hub does not work unless I run as root. (Linux) ) by running:

  1. sudo chown username:username -R ~/.config/UnityHub
  2. sudo chown username:username -R ~/.config/unity3d
  3. sudo chown username:username -R ~/Unity/Hub #Folder in which I installed the hub(downloaded editors saved here), I guess it might be different for you, check
  4. sudo chown username:username -R for your project folders wherever you saved them
  5. sudo chown username:username -R ~/.local/share/unity3d
  6. sudo chown username:username -R ~/opt # this one is weird, I would advise setting it back to root after you’re done

And create a folder as well:
7) sudo mkdir /home/username/.local/share/unity3d/prefs

8)reboot

After all that it worked for me !