Question "Your projecy was last saved with a different version of unity"

hi everybody, as you can see i'm a total newbie. i can't really figure out a solution. this is the situation: i just downloaded and installed Unity Hub 3.1.2 and also installed the racommended version Unity 2021.3.2f1. Then, i created my first project using this version of unity, but when i try to open it (still using the same version, 2021.3.2f1) i just get the message:
"Your projecy was last saved with a different version of Unity
The saved project (before 5.0) does not match the launched editor (2021.3.2f1)
...."
I can't really understand what's going on, i mean, i only have the editor version 2021.3.2f1, and i created the project with that version, and i also try to open it just using that version! please help me

 

Hey I m having the exact same issue.. Tell me if you solved it thanks

 

Hi

Still doesn't have a solution ?