I'm trying to install a gem using <code>gem install mygem</code> or update RubyGems using <code>gem update --system</code>, and it fails with this error: <pre class="prettyprint lang-none prettyprint-override"><code>ERROR: While executing gem ... (Gem::FilePermissionError) You don't have write permissions for the /Library/Ruby/Gems/2.0.0 directory. </code></pre> Does anyone have an idea how to solve this?

Try adding <code>--user-install</code> instead of using <code>sudo</code>: <pre class="prettyprint"><code>gem install mygem --user-install </code></pre>

How to install a gem or update RubyGems if it fails with a permissions error

Tags:

macos

ruby

rubygems

I'm trying to install a gem using gem install mygem or update RubyGems using gem update --system, and it fails with this error:

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

Does anyone have an idea how to solve this?

541

asked Jan 30 '13 15:01

Gaurav

1 Answers

Try adding --user-install instead of using sudo:

gem install mygem --user-install

143

answered Sep 23 '22 07:09

nathanwhy

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