Error of “error: could not lock config file .git/config: Permission denied” occurs while installing Carthage

Question

I want to install carthage on my Mac OS using brew install carthage command. However, I get the following error:

touch: /usr/local/Homebrew/.git         


        

Answer 1

In High Sierra, run the command:

sudo chown -R $(whoami) $(brew --prefix)/*

Answer 2

You can use this also instead sudo chown -R $USER $(brew --prefix)/*

Answer 3

I have macOS Catalina 10.15.1 after hours (like always) this worked.

sudo chown -R $(whoami):admin /usr/local/* && sudo chmod -R g+rwx /usr/local/*

Answer 4

Check for the permissions on these files.

ls -l /usr/local/Homebrew/.git/FETCH_HEAD
ls -l /usr/local/Homebrew/Library/Taps/caskroom/homebrew-cask/.git/FETCH_HEAD
ls -l /usr/local/Homebrew/Library/Taps/dart-lang/homebrew-dart/.git/FETCH_HEAD
ls -l /usr/local/Homebrew/Library/Taps/homebrew/homebrew-core/.git/FETCH_HEAD

If you don't have the permissions, run

sudo chown -R $(whoami):admin /usr/local/* && sudo chmod -R g+rwx /usr/local/*

In High Sierra, Run this command instead:

sudo chown -R $(whoami) $(brew --prefix)/*

You can also see the related github issues here

Answer 5

This worked for me : macOS Catalina 10.15.1

sudo chown -R $(whoami):admin /usr/local/* && sudo chmod -R g+rwx /usr/local/*

Answer 6

I have High Sierra and only this worked for me.

1. sudo chown -R $(whoami):admin /usr/local/* && sudo chmod -R g+rwx /usr/local/*
you should not write sudo before brew the right command is 
2. brew install mysql