Why I can’t update my MacBook to Catalina?
Before the update was released, I was using macOS Catalina Beta version, now the full version has released. I tried to remove the beta profile but it is not erasing so I went to App Store and download the full version from there, then it is showing “The requested version of macOS is not available”. I brought this Mac last years. It is a MacBook Air 2017. One more thing, in the settings there is not Sidecar icon so I can use it.
Thank you
MacBook Air