vim ruby mismatch on Mac High Sierra

Question

I recently upgraded my Mac to High Sierra

After the upgrade, Macvim (mvim) stopped working because (I assume) HighSierra upgraded ruby to 2.3, and mvim

Answer 1

What helped in my case was:

brew link --overwrite vim

In your case, it might be useful to use the same command for MacVim

brew link --overwrite macvim