Eclipse IDE for C/C++ Developers. The third option did work fine on mac though. Google photo app, for android to mac. From any Arduino IDE project, get the core.a file in the compilation subdirectory.

Word, Excel, PowerPoint, Outlook and Lync have not been tested on macOS 10.13 High Sierra, and no formal support for this configuration will be provided. Since October 10, 2017, Office for Mac 2011* is no longer supported. Open Microsoft Word, Excel, or another Microsoft application. Select “ Help ” > “ Check for updates “. If you don’t see this option, or if you don’t have an option to update, download and install AutoUpdate. Outlook for mac won't open high sierra.

I'm on eclipse on a mac and I just set the settings in my 'working' project telling Eclipse to use my GCC 4.9.0 instead of the 4.2.1 but when I run my program which is just a version-test.cpp (I'm following Bill Weinman's videos and I've done every step he did on the video) it says 'The program file specified in the launch configuration does not exist. The file /Users/Tanner/Documents/workspace/Working/Debug/Working does not exist' But I know that before I changed the settings, that 'working' executable in the debug folder did exist. Somehow it vanished or went someplace else after I changed my settings and tried to run the version-test.cpp again. But in Weinman's video his worked and switched to the later GCC version. I'm not experienced at all with this stuff I am just a beginner, having trouble trying to solve this problem.