"ERROR: While executing gem ... (Gem::FilePermissionError) You don't have write permissions for the /Library/Ruby/Gems/2.0.0 directory"
When setting up this portfolio, I ran into what seemed like an insurmountable snag while trying to install the Jekyll Ruby Gem. Both the instructions provided by Jekyll and Bloc seemed straighforward enough:
$ gem install jekyl$ gem install jekyll-paginate$ gem install pygments.rb
Well, that didn’t work. Mainly because my Mac was running Ruby 2.0.0 and Jekyll requires version 2.1 or higher. So it took me a while to figure out how to get my machine switched over to a newer Ruby version.
The first time I got the error message - ERROR: While executing gem … (Gem::FilePermissionError) You don’t have write permissions for the /Library/Ruby/Gems/2.0.0 directory - I was very confused. I do all my coursework on my personal laptop. I am the sole admin. I should have perms for everything, right?? Apparently this was not the case. So I started searching Stack Overflow and poking around. Here are things I tried that did not work:
- Gem install jekyll - error message as above
- Rbenv init - command not found
- Installed homebrew - successful installation!
- Brew install rbenv init - fail (+ a couple of iterations that also failed)
- Rbenv init - success (I thought at the time, I was wrong)
- Gem install jekyll - error message as above
- Rbenv init - seemed successful
- Gem install jekyll - error message as above
- Posted on Slack, and a student recommended I try rbenv local 2.4.1 - result: rbenv: version2.4.1 not installed
- Tried gem install jekyll one more time just in case, same error message as above
So at that point I asked my mentor for help, and he suggested I run $PATH and ruby -v to see what was up. Turned out there were no shims showing when I ran $PATH indicating that rbenv may not have been correctly installed, and the ruby -v was still returning 2.0, so I hadn’t managed to effectively update to a later version.
When I ran curl -fsSL https://github.com/rbenv/rbenv-installer/raw/master/bin/rbenv-doctor | bash I got an error: Checking for rbenv’ in PATH: /usr/local/bin/rbenv Checking for rbenv shims in PATH: not found The directory/Users/amyfarley/.rbenv/shims’ must be present in PATH for rbenv to work. Please run `rbenv init’ and follow the instructions.
…so I ran rbenv init and got: Load rbenv automatically by appending the following to ~/.bash_profile: eval "$(rbenv init -)". I had received that message previously, but didn’t understand what it meant, and thought I’d successfully initiated rbenv. I hadn’t. Finally I popped eval "$(rbenv init)" in the command line and sure enough, that propelled me forward.
I followed the rest of the steps and closed the window but when I reopened and did ruby -v, it still had 2.0.0 listed. I realized that apparently I need to run eval "$(rbenv init -)" every time and got ruby -v to display 2.4.1 and got the jekyll gem installed!
I have yet to figure out a way to permanently run ruby 2.4.1. Maybe someday I will!