I'm getting this error after upgrading to Qt 6.5.2 and Qt Creator 11.0.0 on my Mac under Preferences > Kits > Qt Versions:
Not all possible target environments can be supported due to missing compilers.
When I hover over "Not all possible...", it says:
The following ABIs are currently not supported:
arm-darwin-generic-mach_o-64bit
When I click on Details, under the ABI section, it says:
×86-darwin-generic-mach_o-64bit
arm-darwin-generic-mach_o-64bit
Which explains why such an error may be displayed.
The problem: projects are being built and compiled, but Qt Creator cannot identify any Qt-related files or identifiers.
It all worked well on Qt Creator 10.0.2 and Qt 6.4.2.
macOS 12.6.8
Xcode 14.2
Apple clang version 12.0.0 (clang-1200.0.32.2)
Target: x86_64-apple-darwin21.6.0
Intel-based 2016 MacBook Pro
Explanatory screenshots here.
The same question has been asked on Qt Forum.
As followed up on the aforementioned topic on Qt Forum and with the help of @hskolgund there, I had to reinstall Xcode Command Line Tools.
First, I deleted it by sudo rm -fR /Library/Developer/CommandLineTools and installed by xcode-select --install. The newly installed Clang compiler now contained support for arm64 and so the initial "Not all possible..." problem was resolved, but a new one re-emerged.