Difficulty adding RubyGem to environment.config

rubyonrails-talk
1

Hello-

I'm trying to use Subdomain Fu as a RubyGem (as opposed to a plugin). I'm adding this line of text to my environment.rb:

config.gem 'mbleigh-subdomain-fu', :source => "http:// gems.github.com", :lib => "subdomain-fu"

When I do, if I run script/about (or script/generate) I get the following error:

/usr/lib/ruby/gems/1.8/gems/rails-2.1.0/lib/rails/plugin/locator.rb: 91:in `add': wrong number of arguments (3 for 1) (ArgumentError)   from /usr/lib/ruby/gems/1.8/gems/rails-2.1.0/lib/rails/plugin/ locator.rb:91:in `plugins'   from /usr/lib/ruby/gems/1.8/gems/rails-2.1.0/lib/rails/plugin/ loader.rb:63:in `locate_plugins'   from /usr/lib/ruby/gems/1.8/gems/rails-2.1.0/lib/rails/plugin/ loader.rb:62:in `map'   from /usr/lib/ruby/gems/1.8/gems/rails-2.1.0/lib/rails/plugin/ loader.rb:62:in `locate_plugins'   from /usr/lib/ruby/gems/1.8/gems/rails-2.1.0/lib/rails/plugin/ loader.rb:27:in `all_plugins'   from /usr/lib/ruby/gems/1.8/gems/rails-2.1.0/lib/rails/plugin/ loader.rb:22:in `plugins'   from /usr/lib/ruby/gems/1.8/gems/rails-2.1.0/lib/rails/plugin/ loader.rb:45:in `add_plugin_load_paths'   from /usr/lib/ruby/gems/1.8/gems/rails-2.1.0/lib/initializer.rb: 235:in `add_plugin_load_paths'    ... 6 levels...   from /usr/lib/ruby/gems/1.8/gems/rails-2.1.0/lib/commands/about.rb:1   from /usr/local/lib/site_ruby/1.8/rubygems/custom_require.rb:27:in `gem_original_require'   from /usr/local/lib/site_ruby/1.8/rubygems/custom_require.rb:27:in `require'   from script/about:3

If I remove the config.gem line then running script/about produces the following output:

About your application's environment Ruby version 1.8.6 (i486-linux) RubyGems version 1.2.0 Rails version 2.1.0 Active Record version 2.1.0 Action Pack version 2.1.0 Active Resource version 2.1.0 Action Mailer version 2.1.0 Active Support version 2.1.0 Application root /home/emarthinsen/Desktop/Rails/ subdomain_test Environment development Database adapter sqlite3 Database schema version 0

Does anyone know what's going on?

Regards- Eric

2

[snip]

Hi Eric,

Adding the spec to environment.rb tells Rails that you're using the gem, but you still need to install it onto your machine:

rake gems:install

You also need to install it on all of your servers where the app will run; or, "unpack" the gems you're using into vendor/ so you won't need to:

rake gems:unpack

Jeff

REST with Rails: Do cool things with Rails! For beginning Rails developers or those just new to REST. Oct 4, 2008, Austin, TX http://www.purpleworkshops.com/workshops/rest-and-web-services

3

Hi Jeff-

When I run "rake gems:install" I get exactly the same error about having the wrong number of arguments in 'add'. I'm wondering if there is a versioning error going on here. The version numbers above, from the successful run of script/about all look good though.

-Eric

4

Ah, sorry I missed that in your original post. I'm not sure what's going on.

If you don't get an answer here soon, perhaps try posting a comment on his blog post? http://www.mbleigh.com/2008/6/23/subdomainfu-a-new-way-to-tame-the-subdomain

If I figure it out I'll post here again.

Jeff

REST with Rails: Do cool things with Rails! For beginning Rails developers or those just new to REST. Oct 4, 2008, Austin, TX, $295 (get 10% off, discount code "PWRRGG") http://www.purpleworkshops.com/workshops/rest-and-web-services

5

I figured it out. I had multiple version of rubygems installed. I must have had 3 versions installed at one time or another. I removed my original install of rubygems using Synaptic (I'm on Ubuntu). I then installed the latest rubygems from source. What I didn't know was that there was a third version lurking in my ruby installation folder. I deleted that directory and this started working.