I’m trying to download Utop to use Ocaml with vscode for Mac. When I run opam install utop, I get this error.
Hello @Whitney_Schwitter,
I suspect that some of the packages installed via opam were installed as superuser (running sudo opam install <package>).
opam is supposed to be used as a regular user (see opam - FAQ). To start again with a clean state, I suggest that you remove the directory ~/.opam and then run opam init. After that, just install whatever you want by running opam install <package>.
Just keep in mind that to avoid getting in trouble with opam, never run sudo opam <sub-command>.
I hope this will help 
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Thank you so much! This worked for me.