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

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