Please enter the right number error when installing

Haven’t found any solution to this. Already tried updating, rebooting, and changing the server. Nothing worked.

Try to cd into some folder under /usr/ and then try this install command using sudo command and see if that works.

Just tried. Not working

Reinstall os and then update core first and try

Already updated core OS few times before installing.

Is it solved now?

Yes. I don’t know how, but it was resolved automatically after one day.

OS update and all issue fix today same issue facing but after watch " die2mrw007" reply then update os and fix thank you sir