Hi. Please try to remove the export statements from your .bashrc file. The script from ROOT should be enough to setup everything for you. Also, LD_LIBRARY_PATH has no effect on Macs, you have to use the equivalent DYLD_LIBRARY_PATH instead, although I recommend not setting it up if you don’t need. Please also make sure that you have the full XCode installed, and that you have accepted the license, otherwise ROOT is likely not to work either. See, e.g., this thread Embedded cling error with latest xcode for more information.