# Problem using "rake gems:\*" with mongrel\_cluster, ruby-oci8, and sqlite3-ruby **URL:** \ **Category:** Rails\ **Created:** [September 12, 2008, 3:34pm UTC](https://www.ruby-forum.com/t/problem-using-rake-gems-with-mongrel-cluster-ruby-oci8-and-sqlite3-ruby/148406 "2008-09-12T15:34:00Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![Mike\_DeLaurentis](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/m/ecc23a/32.png) [@Mike\_DeLaurentis](https://www.ruby-forum.com/u/Mike_DeLaurentis)\ **Post date:** [September 12, 2008, 3:34pm UTC](https://www.ruby-forum.com/t/problem-using-rake-gems-with-mongrel-cluster-ruby-oci8-and-sqlite3-ruby/148406/1 "2008-09-12T15:34:00Z")
I’m having trouble using the environment.rb file to manage my gem dependencies for certain gems. For example, I added “config.gem mongrel\_cluster” to my environment.rb file, and then installed it through “rake gems install”, and it seemed to work fine: - sudo rake gems:install Password: (in /home/mdelaurentis/src/longview-web) gem install mongrel\_cluster Bulk updating Gem source index for: [http://gems.rubyforge.org/](http://gems.rubyforge.org/) Successfully installed mongrel\_cluster-1.0.5 1 gem installed But then when I use “rake gems” to list the gems, I get this “no such file to load error”, and the list of gems shows mongrel\_cluster as not being installed: [mdelaurentis-lin:~/src/longview-web] - sudo rake gems (in /home/mdelaurentis/src/longview-web) no such file to load – mongrel\_cluster /usr/local/lib/ruby/site\_ruby/1.8/rubygems/custom\_require.rb:27:in `gem_original_require' /usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:in `require’ ---- Snip ---- [I] rcov [I] ar-extensions [I] json [I] daemons [I] mongrel [I] capistrano [I] gem\_plugin [] mongrel\_cluster As you can see, some of the gems work just fine. I’ve only seen this problem with mongrel\_cluster, sqlite3, and ruby-oci8. I’m using Ruby 1.8.6 and Rails 2.1.1. Has anyone else encountered this? ---
**Author:** ![Mike\_DeLaurentis](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/m/ecc23a/32.png) [@Mike\_DeLaurentis](https://www.ruby-forum.com/u/Mike_DeLaurentis)\ **Post date:** [September 12, 2008, 7:16pm UTC](https://www.ruby-forum.com/t/problem-using-rake-gems-with-mongrel-cluster-ruby-oci8-and-sqlite3-ruby/148406/2 "2008-09-12T19:16:02Z")
I figured it out. It’s because the configuration was trying to load the mongrel\_cluster, ruby-oci8, and sqlite3-ruby libraries through ‘require “”’. I needed to specify the name for the library in the environment.rb file, like this: config.gem “mongrel\_cluster”, :lib =\> “mongrel\_cluster/init” config.gem “ruby-oci8”, :lib =\> “oci8” config.gem “sqlite3-ruby”, :lib =\> “sqlite3” All my other gems had a \*.rb file with the same name as the gem, but these three don’t, so the :lib option must be used. ---
**Author:** ![Mike\_DeLaurentis](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/m/ecc23a/32.png) [@Mike\_DeLaurentis](https://www.ruby-forum.com/u/Mike_DeLaurentis)\ **Post date:** [October 10, 2008, 11:28am UTC](https://www.ruby-forum.com/t/problem-using-rake-gems-with-mongrel-cluster-ruby-oci8-and-sqlite3-ruby/148406/3 "2008-10-10T11:28:35Z")
Mike, thank you!!, you saved me some complicated workaround around this: config.gem “flickr-fu” $ rake gems These gems that this application depends on are missing: - flickr-fu Run “rake gems:install” to install them. BUT: config.gem “flickr-fu”, :lib =\> ‘flickr\_fu’ $ rake gems [F] flickr-fu I don’t get why this isn’t stated in the environment.rb examples more clearly. Thanks again, hopefully someone searching this group for something “config.gem problem load gem installed” will find it 🙂 Karel