Failure to install ruby gems with rbenv

Question

I can't install any Ruby gems. I am using rbenv and when I use gem install rails, I get a permission error:

ERROR:  While executing gem ... (Gem::FilePermissionError)
You don't have write permissions for the /Library/Ruby/Gems/2.0.0 directory

I have been trying to install Rails for days now, even with RVM.

I am pretty sure the problem lies with my $PATH but I do not know how to change this.

I am running Ruby version 2.0.0p247.

Answer 1

Can you try gem update --system, and try to gem install again, if it fails, post your log.