I know corona doesn't support high sierra officially yet. however, i encountered the following error when i launched the simulator daily build 3155 on macos 10.13:
Sep 30 12:36:35.574 Activated fonts in 'Lato-Bold.ttf' (Lato-Bold) Sep 30 12:36:35.702 Activated fonts in 'Lato-Regular.ttf' (Lato-Regular) Sep 30 12:36:35.702 Copyright (C) 2009-2017 C o r o n a L a b s I n c . Version: 3.0.0 Build: 2017.3155 Sep 30 12:36:35.703 2017-09-30 00:36:35.506 CoronaConsole[16479:1056627] *** WARNING: Textured window <NSWindow: 0x7f9c51c55730> is getting an implicitly transparent titlebar. This will break when linking against newer SDKs. Use NSWindow's -titlebarAppearsTransparent=YES instead.
by the way, the simulator doesn't exit after displaying the error. Any ideas?