Homebrew: Could not symlink, /usr/local/share/man/man7 is not writable

Question

I\'m installing LightGBM on OSX, following the installation guide. While installing cmake, Homebrew gives such warning message:

Warning: cmake-3.8.1         


        

Answer 1

Just follow these 4 steps

1. sudo chown -R $(whoami) $(brew --prefix)/*
2. brew doctor
3. brew prune
4. brew link cmake