Today I find when I execute the “.zshrc” script manually, the following error happens:

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zsh problem: compinit:503: no such file or directory: /usr/local/share/zsh/site-functions/_brew_cask

I get the solution from here.

This is caused by “Homebrew” and can be fixed by running the following commends(which cleans up the useless files):

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brew doctor
brew cleanup
source ~/.zshrc