null can’t be installed on “Elmer 1.02TB” because macOS version 11 or later is required.
null can’t be installed on “Elmer 1.02TB” because macOS version 11 or later is required. my OS Catalina 10.15
MacBook Pro 13″, macOS 10.15
Back up your data, check your applications for compatibility, click here, and if your MacBook Pro is a late 2013 or newer model, then on the download link for Big Sur. Otherwise, try downloading it to a newer unit on the same Apple ID first.
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