So what exactly is causing this frustration and how can you remedy it? Find out what causes the “Operation not permitted” error message and learn how to fix it. MacOS is reliable and well-protected, but sometimes those protections go over the top. The “Operation not permitted” error message even appears when trying to read certain directories in the local user! It occurs when running third-party applications or after inputting command lines in Terminal-no matter how simple the request is! Many users are confronted with this irritating error message since updating to macOS Catalina-Mojave. They see this error on advanced commands like super-user sudo and change ownership chown commands but also on simple commands like the list directory command ls and others. If so you are not alone, quite a few of our advanced Mac readers tell us that their work is stymied by this “operation not permitted” error message.

Working with your Mac’s Terminal Utility but getting the error message “Operation not permitted?” Are Terminal commands that used to work in macOS High Sierra and Sierra not working?

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