When I go to download an app it says -
"We could not complete your purchase.
(null) can't be installed on "OS X Base System" because macOS version 10.14 or later is required."
how can I fix this? My current version is 10.13.6
MacBook Air 11″, macOS 10.13
If an app requires macOS 10.14, then it can't be installed on a Mac with macOS 10.13.6.
You will need to upgrade to macOS 10.14. Go to System Preferences>Software Update. Does it offer the 10.14 upgrade?
M1 Mac mini, macOS 11.2; Watch, series 5 GPS/cellular, watchOS 7.3; iPad Pro 2nd Gen, iPadOS 14.4; iPad Air 2, iPadOS 14.4; iPhone 12 Pro, iOS 14.4; TV 4th Gen, tvOS 14.; HomePods, audioOS 14.4 and Airport Express w/ Airplay 2
Can't download apps on my early 2015 MacBook Air
