Can’t install the software because it is not currently available from the Software Update server.
MacBook Air 13″, macOS 10.15
You don't say what update you are trying to install, so I will give you links to the most recent.
https://support.apple.com/kb/DL2040?viewlocale=en_US&locale=en_US
https://support.apple.com/kb/DL2043?viewlocale=en_US&locale=en_US
Once downloaded double-click to install.
I have the same issue. I can't install xcode-select
After executing "xcode-select --install" in command line I got a dialog window "The "xcode-select" command requires the command line developer tools. Would you like to install the tools now?" I clicked on a button "Install".
Then "License Agreement" window appears, I accepted it. Then a few seconds I saw dialog like "Find software" and after it the error message:
Can’t install the software because it is not currently available from the Software Update server.
unable to update
