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POUninitialized constant error message after a typo done while installing devise gem
 

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  1. POUninitialized constant error message after a typo done while installing devise gem
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    <p>I just started learning how to program, but have been using Ubuntu for some years now, so I am well familiar with researching problems and errors, but either this area is too new for me, or I really cant find any specific answers for this.</p> <p>I am taking a ruby on rails introduction course, and got to the point where I had to install the devise gem and here is where I made a mistake. </p> <p>While following the instructions on <a href="https://github.com/plataformatec/devise" rel="nofollow noreferrer">the devise github page</a> I accidentally typed in:</p> <pre><code>rails generate devise install </code></pre> <p>instead of </p> <pre><code>rails generate devise:install </code></pre> <p>Now, whenever I try to load</p> <blockquote> <p>rails s</p> </blockquote> <p>I get this error message:</p> <pre><code>/home/amer/.rvm/gems/ruby-1.9.3-p327/gems/activesupport-3.2.9/lib/active_support/inflector/methods.rb:230:in `block in constantize': uninitialized constant Install (NameError) from /home/amer/.rvm/gems/ruby-1.9.3-p327/gems/activesupport-3.2.9/lib/active_support/inflector/methods.rb:229:in `each' from /home/amer/.rvm/gems/ruby-1.9.3-p327/gems/activesupport-3.2.9/lib/active_support/inflector/methods.rb:229:in `constantize' from /home/amer/.rvm/gems/ruby-1.9.3-p327/gems/devise-2.1.2/lib/devise.rb:256:in `get' from /home/amer/.rvm/gems/ruby-1.9.3-p327/gems/devise-2.1.2/lib/devise/mapping.rb:77:in `to' from /home/amer/.rvm/gems/ruby-1.9.3-p327/gems/devise-2.1.2/lib/devise/mapping.rb:72:in `modules' from /home/amer/.rvm/gems/ruby-1.9.3-p327/gems/devise-2.1.2/lib/devise/mapping.rb:89:in `routes' from /home/amer/.rvm/gems/ruby-1.9.3-p327/gems/devise-2.1.2/lib/devise/mapping.rb:156:in `default_used_route' from /home/amer/.rvm/gems/ruby-1.9.3-p327/gems/devise-2.1.2/lib/devise/mapping.rb:66:in `initialize' from /home/amer/.rvm/gems/ruby-1.9.3-p327/gems/devise-2.1.2/lib/devise.rb:290:in `new' from /home/amer/.rvm/gems/ruby-1.9.3-p327/gems/devise-2.1.2/lib/devise.rb:290:in `add_mapping' from /home/amer/.rvm/gems/ruby-1.9.3-p327/gems/devise-2.1.2/lib/devise/rails/routes.rb:208:in `block in devise_for' from /home/amer/.rvm/gems/ruby-1.9.3-p327/gems/devise-2.1.2/lib/devise/rails/routes.rb:207:in `each' from /home/amer/.rvm/gems/ruby-1.9.3-p327/gems/devise-2.1.2/lib/devise/rails/routes.rb:207:in `devise_for' from /home/amer/Documents/Rails_Projects/omrails/omrails1/config/routes.rb:3:in `block in &lt;top (required)&gt;' from /home/amer/.rvm/gems/ruby-1.9.3-p327/gems/actionpack-3.2.9/lib/action_dispatch/routing/route_set.rb:282:in `instance_exec' from /home/amer/.rvm/gems/ruby-1.9.3-p327/gems/actionpack-3.2.9/lib/action_dispatch/routing/route_set.rb:282:in `eval_block' from /home/amer/.rvm/gems/ruby-1.9.3-p327/gems/actionpack-3.2.9/lib/action_dispatch/routing/route_set.rb:260:in `draw' from /home/amer/Documents/Rails_Projects/omrails/omrails1/config/routes.rb:1:in `&lt;top (required)&gt;' from /home/amer/.rvm/gems/ruby-1.9.3-p327/gems/railties-3.2.9/lib/rails/application/routes_reloader.rb:40:in `block in load_paths' from /home/amer/.rvm/gems/ruby-1.9.3-p327/gems/railties-3.2.9/lib/rails/application/routes_reloader.rb:40:in `each' from /home/amer/.rvm/gems/ruby-1.9.3-p327/gems/railties-3.2.9/lib/rails/application/routes_reloader.rb:40:in `load_paths' from /home/amer/.rvm/gems/ruby-1.9.3-p327/gems/railties-3.2.9/lib/rails/application/routes_reloader.rb:16:in `reload!' from /home/amer/.rvm/gems/ruby-1.9.3-p327/gems/railties-3.2.9/lib/rails/application/routes_reloader.rb:26:in `block in updater' from /home/amer/.rvm/gems/ruby-1.9.3-p327/gems/activesupport-3.2.9/lib/active_support/file_update_checker.rb:78:in `call' from /home/amer/.rvm/gems/ruby-1.9.3-p327/gems/activesupport-3.2.9/lib/active_support/file_update_checker.rb:78:in `execute' from /home/amer/.rvm/gems/ruby-1.9.3-p327/gems/railties-3.2.9/lib/rails/application/routes_reloader.rb:27:in `updater' from /home/amer/.rvm/gems/ruby-1.9.3-p327/gems/railties-3.2.9/lib/rails/application/routes_reloader.rb:7:in `execute_if_updated' from /home/amer/.rvm/gems/ruby-1.9.3-p327/gems/railties-3.2.9/lib/rails/application/finisher.rb:66:in `block in &lt;module:Finisher&gt;' from /home/amer/.rvm/gems/ruby-1.9.3-p327/gems/railties-3.2.9/lib/rails/initializable.rb:30:in `instance_exec' from /home/amer/.rvm/gems/ruby-1.9.3-p327/gems/railties-3.2.9/lib/rails/initializable.rb:30:in `run' from /home/amer/.rvm/gems/ruby-1.9.3-p327/gems/railties-3.2.9/lib/rails/initializable.rb:55:in `block in run_initializers' from /home/amer/.rvm/gems/ruby-1.9.3-p327/gems/railties-3.2.9/lib/rails/initializable.rb:54:in `each' from /home/amer/.rvm/gems/ruby-1.9.3-p327/gems/railties-3.2.9/lib/rails/initializable.rb:54:in `run_initializers' from /home/amer/.rvm/gems/ruby-1.9.3-p327/gems/railties-3.2.9/lib/rails/application.rb:136:in `initialize!' from /home/amer/.rvm/gems/ruby-1.9.3-p327/gems/railties-3.2.9/lib/rails/railtie/configurable.rb:30:in `method_missing' from /home/amer/Documents/Rails_Projects/omrails/omrails1/config/environment.rb:5:in `&lt;top (required)&gt;' from /home/amer/Documents/Rails_Projects/omrails/omrails1/config.ru:4:in `block in &lt;main&gt;' from /home/amer/.rvm/gems/ruby-1.9.3-p327/gems/rack-1.4.1/lib/rack/builder.rb:51:in `instance_eval' from /home/amer/.rvm/gems/ruby-1.9.3-p327/gems/rack-1.4.1/lib/rack/builder.rb:51:in `initialize' from /home/amer/Documents/Rails_Projects/omrails/omrails1/config.ru:1:in `new' from /home/amer/Documents/Rails_Projects/omrails/omrails1/config.ru:1:in `&lt;main&gt;' from /home/amer/.rvm/gems/ruby-1.9.3-p327/gems/rack-1.4.1/lib/rack/builder.rb:40:in `eval' from /home/amer/.rvm/gems/ruby-1.9.3-p327/gems/rack-1.4.1/lib/rack/builder.rb:40:in `parse_file' from /home/amer/.rvm/gems/ruby-1.9.3-p327/gems/rack-1.4.1/lib/rack/server.rb:200:in `app' from /home/amer/.rvm/gems/ruby-1.9.3-p327/gems/railties-3.2.9/lib/rails/commands/server.rb:46:in `app' from /home/amer/.rvm/gems/ruby-1.9.3-p327/gems/rack-1.4.1/lib/rack/server.rb:301:in `wrapped_app' from /home/amer/.rvm/gems/ruby-1.9.3-p327/gems/rack-1.4.1/lib/rack/server.rb:252:in `start' from /home/amer/.rvm/gems/ruby-1.9.3-p327/gems/railties-3.2.9/lib/rails/commands/server.rb:70:in `start' from /home/amer/.rvm/gems/ruby-1.9.3-p327/gems/railties-3.2.9/lib/rails/commands.rb:55:in `block in &lt;top (required)&gt;' from /home/amer/.rvm/gems/ruby-1.9.3-p327/gems/railties-3.2.9/lib/rails/commands.rb:50:in `tap' from /home/amer/.rvm/gems/ruby-1.9.3-p327/gems/railties-3.2.9/lib/rails/commands.rb:50:in `&lt;top (required)&gt;' from script/rails:6:in `require' from script/rails:6:in `&lt;main&gt;' </code></pre> <p>Before posting here I tried reinstalling ruby 1.9.3. using rvm. I tried using</p> <pre><code>rvm gemset empty [gemset_name] </code></pre> <p>as was discribed in <a href="https://stackoverflow.com/questions/4693445/rvm-uninstalling-all-gems-of-a-gemset">RVM: Uninstalling all gems of a gemset</a> but that didn't really help either.</p> <p>What should I do? Can anyone explain to me what is happening here?</p>
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