Homebrew install issues

Question

I am having some trouble with brew installs. So I have done the following:

Uninstalled homebrew with:

$ rm -rf /usr/local/Cellar /usr/local/.git &

Answer 1

Did you perhaps install brew with an other user, or with sudo previously?

Check the permissions of /Library/Caches/Homebrew, and force it to be writable for your user, by either changing its owner, or its permissions.

You might also try to uninstall with something like https://gist.github.com/1173223 and try the install again.