问题
$ brew install fontconfig
Error: Permission denied - /Library/Caches/Homebrew/Formula/fontconfig.brewing
$ sudo chown -R `whoami` /usr/local
$ brew install fontconfig
Error: Permission denied - /Library/Caches/Homebrew/Formula/fontconfig.brewing
Not sure where to go from here. Ran brew doctor to fix some existing issues, but can't seem to get past this.
回答1:
trojanfoe's answer helped. There was a permission issue with the Library/Logs folder that I wasn't assigned to, but somehow the Library/Caches/Homebrew folder didn't exist. So I just created that, the subfolder Formula, and changed the permission and everything installed just fine. It actually cleared up a lot of errors I was having.
Thanks everyone.
Update
@fet's one liner works great.
mkdir -p ~/Library/Caches/Homebrew/Formula
回答2:
For others that are running into the error of something like
$ brew upgrade
==> Upgrading 1 outdated package, with result:
libtool 2.4.6
==> Upgrading libtool
Error: Permission denied - /usr/local/lib/libltdl.7.dylib
Make sure that your directory, in this case /usr/local/lib, has sufficient permissions for you to access it. I ran into the issue where it was only assigned to root:admin.
$ ls -la /usr/local/lib/ | grep "libltdl.7"
lrwxr-xr-x 1 username admin 43 Oct 12 2014 libltdl.7.dylib -> ../Cellar/libtool/2.4.2/lib/libltdl.7.dylib
Switched that to myusername:admin and was able to upgrade with no problems.
cd /usr/local/lib
sudo chown `whoami`:admin .
Hope that helps!
来源：https://stackoverflow.com/questions/17397544/brew-install-permission-denied-after-chown-r-whoami