You should download the Command Line Tools for Xcode 13.1.

[liunina]

❯ brew install fabernovel/formulae/xcresource ==> Cloning https://github.com/faberNovel/xcresource-cli.git Updating /Users/liunian/Library/Caches/Homebrew/xcresource--git ==> Checking out tag 0.1.4 HEAD is now at a044a32 Update changelog HEAD is now at a044a32 Update changelog ==> Installing xcresource from fabernovel/formulae Error: Your Command Line Tools are too outdated. Update them from Software Update in System Preferences or run: softwareupdate --all --install --force

If that doesn't show you any updates, run: sudo rm -rf /Library/Developer/CommandLineTools sudo xcode-select --install

Alternatively, manually download them from: https://developer.apple.com/download/all/. You should download the Command Line Tools for Xcode 13.1.

But: My Xcode is 13.2.1