If your Mac is not able to run our Mac software please check that the correct version of Mono is installed. If Mono was installed on your computer by other software it is possible that the wrong version is being used.
To check the version of Mono that is installed, please open Terminal and type "mono -V" (note capital 'V') and the result will be displayed.
Mono versions. These are the latest tested, known good configurations: Mono JIT compiler version 4.8.0 (mono-4.8.0-branch/8f6d0f6 Thu Mar 9 11:59:17 EST 2017) Tested on macOS 10.12.1 and 10.13. Mono JIT compiler version 4.4.2 (mono-4.4.0-branch-c7sr1/f72fe45 Wed Jul 27 16:20:13 EDT 2016) Tested on macOS 10.11.6.