Can't update MacBook6.1 to OS X 12 or later
I am trying to install an app from the App Store, but I am getting the error message "We could not complete your purchase. (null) can't be installed on "Untitled" because OS X version 12 or later is required."
My MacBook6.1 is currently running OS X 10.11.6. I went to the App Store to update my macOS, but there are no updates available.
How can I update my MacBook6.1 to OS X 12 or later?
Additional information:
- MacBook6.1
- OS X 10.11.6
- App Store error message: "We could not complete your purchase. (null) can't be installed on "Untitled" because OS X version 12 or later is required."
Steps I have already tried:
- Checked the App Store for updates to macOS, but there are none available.
What I am looking for:
- Help on how to update my MacBook6.1 to OS X 12 or later.
Thank you for your time and assistance.
MacBook, OS X 10.11