我想在我的mac系统上安装homebrew，但我无法安装。安装过程给我错误。
error: could not lock config file /usr/local/Homebrew/.git/config: Permission denied
fatal: could not set 'core.repositoryformatversion' to '0'
Failed during: git init -q
我已经尝试过以下命令来安装自制软件
/usr/bin/ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"