Ran "brew update" on OS X 10.8.3 and recieved error.

[lukevers]

No brew commands currently work for me.

I ran brew update and recieved this error:

warning: unable to unlink Library/ENV/pkgconfig/leopard/libcrypto.pc: Permission denied
warning: unable to unlink Library/ENV/pkgconfig/leopard/libcurl.pc: Permission denied
warning: unable to unlink Library/ENV/pkgconfig/mountain_lion/libcurl.pc: Permission denied
warning: unable to unlink Library/ENV/pkgconfig/mountain_lion/libexslt.pc: Permission denied
warning: unable to unlink Library/ENV/pkgconfig/mountain_lion/libxml-2.0.pc: Permission denied
warning: unable to unlink Library/ENV/pkgconfig/mountain_lion/libxslt.pc: Permission denied
error: unable to create symlink Library/ENV/pkgconfig/10.4 (Permission denied)
fatal: cannot create directory at 'Library/ENV/pkgconfig/10.5': Permission denied
Error: Failure while executing: git pull -q origin refs/heads/master:refs/remotes/origin/master

Now whenever I even try to run brew or any other type of command related, I get this:

/usr/local/Library/Homebrew/global.rb:6:in `require': no such file to load -- extend/object (LoadError)
    from /usr/local/Library/Homebrew/global.rb:6
    from /usr/local/Library/brew.rb:18:in `require'
    from /usr/local/Library/brew.rb:18

[mistydemeo]

Try this:

sudo chown -R $USER:admin /usr/local
cd /usr/local
git reset --hard origin/master
brew update

[lukevers]

Thanks, @mistydemeo! After that there was still a problem with a directory that was in /usr/local that shouldn't have been there, but I dealt with those problems and now I'm getting a nice, non-error message.

[nhoizey]

Had the same issue, @mistydemeo 's commands fixed it. Thanks!

[Jun-Dai]

+1. This fixed it for me.

[takaruz]

thx u. this fixed it for me.

[jkosturko]

This fixed my issue also.

Thanks!

[orban]

Fixed my issue as well.

Many thanks!

[crilam]

Fixed my issue on mac os 10.7 also

[tombevers]

This fixed my issue as well.

Thanks!

[BenJam]

+1

[MikeMcQuaid]

@BenJam Don't +1 unless you want a slap ;)

[BenJam]

haha :)

[vciancio]

Thanks! fixed my problem