Question Ruby 2D adventure won't open in Unity Editor

Firstly there is no download project button on my Unity Hub after I installed 2020.3.2f1 LTS on Ubuntu 20.04 as shown here: https://learn.unity.com/tutorial/se...66dbedbc2a0021b1bc7c#5c7f8528edbc2a002053b413

Then I tried to Open in Unity from the asset store here: https://assetstore.unity.com/packag...s/2d-beginner-complete-project-140253#content

But it does not open in Unity.

So what do I do?

 

Is it because my version is 2020.3 and not 2020.2? But that should have no effect on Unity Hub.

 

Do you have the latest Unity Hub version downloaded? You can check by seeing on the top-right corner. If it says, "Download new Unity Hub", then you should update to the latest one.