Make prive repo public

Hi Team, I’ve created one repository which is private. But now I want to make this as a public repository. when i go to project setting > Permission >Project Visibility it does not allow me to select public option. Please help to resolve this.

Got the same problem here. Option to make project public is grey out. Anyone knows why?
I did a fork of another project, and want it to be public too…

Got this exact issue as well, did you find any solution?