O2 build error: Target "O2::SimSetup" not found on MacOS Catalina 10.15.6

Hi,
I am trying to build O2 on MacOS Catalina 10.15.6 with the latest /O2 and /alidist.
I get the following error:
log_simsetup.txt (12.0 KB)
Can anyone help please?
Cheers,
Diana