Method of backup:
in Godot go to file explorer and zip all files, excluding .godot folder.
After having problems I could not fix. I deleted the whole project.
Trying to re-import the project zip file. By Godot import, at project list.
Then I get error as follows:
Cannot build from path containing ‘#’, move your project or update dotnet to the latest version. C:\Users\chihw.nuget\packages\godot.net.sdk\4.3.0\Sdk\Sdk.props(34,5)
What can I do? I already have the lastest dotnet 9.0 with Visual studio core.
I can see the game level I created.