Question Cannot create project with old Unity version

Hi,
I am trying to create a project using Unity 2020.3.30 LTS because one of my internal plugins only worked with that version. I'm using the latest Unity Hub Version 3.3.0 on a Mac Monterey 12.5. I've installed both the latest Unity 2021.3.12.f1 LTS and Unity 2020.3.30 LTS from the Archive (I need the latest version for other projects besides this one). When I was creating the project, it opened a blank Unity window and it was processing something indefinitely. But when I tapped on it, it didn't open any Window. I've even minimized all the other windows, and it still didn't show anything. So I closed that Unity because it has run for a pretty long time. But when I opened the project, it is not valid. there's only Temp and Logs folders in it.

Can anybody help me with this?

Thanks.

 

if nothing else works, create project folder manually
YourProject/
and add Assets/ folder inside it (so unity thinks that its a valid project)

then should be able to open that project (in hub "Open")

 

I think maybe you need also the ProjectSettings file...

OP, make this empty directory structure:

MyNewSooperGame

MyNewSooperGame/Assets

MyNewSooperGame/ProjectManager

and tell Unity Hub to open

MyNewSooperGame

It will complain and ask you for versions, so just clickety-click to answer those questions.

 

Thanks for the suggestions guys. I've tried it and it is still failing. It suggested to run the diagnostics and this is the result:

 

Kinda sounds like maybe something went wrong at install time... did you try reinstall?

 

You're right. After I reinstalled the old Unity, it worked now. Thanks.