I finally got it working. I am using ROOT 6.30.04 since this is the most recent version compatible with my 2017 Mac that runs Ventura 13.6. Then I had to install a more recent version of Xcode since the one available on the App Store required a more recent OS than what my Mac could accommodate. I thought at first that this would fix the problem, but it didn’t. Apparently installing Xcode does not automatically install the newer version of command line tools, so I had to do this manually. The link to the Apple developer page with older software versions is Sign In - Apple. (I downloaded Xcode 15.2, since this is the most recent version my OS will allow. I also downloaded command line tools for Xcode 15.1 [there was not a version for 15.2 oddly].) After all this, ROOT finally seems to be working (or at least it does what it’s supposed to when I type root in Terminal and press return).
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