2018-12-18 00:48:10 +0200 | commented question | problem running Sage on MacOS 10.14, Mojave I have the same problem with the sage-8.4-OSX_10.13.6-x86_64 app. I can run sagemath from the command line, but the app does nothing. I haven't tried the rc1 version I also had the gcc error message. I went ahead and installed the command line tools (but not the full Xcode) via "xcode-select --install". |