Problem with a gem: "no such file to load"

I used 'uuidtools' gem in my controller this way:

  def create
    require 'uuidtools'
    game = Game.new
    game.permalink = Base64.encode64(UUIDTools::开发者_StackOverflow中文版UUID.random_create)[0..8]
    game.save 
    redirect_to :controller => 'home', :action => 'index'
  end

I get this error about the requiring of 'uuidtools':

no such file to load -- uuidtools

(I added the gem to my gem file.)

How can I fix this?

Thanks,

Oded

Perhaps restarting the server would also had fixed the problem

Solved it.

What I did is to migrate the use of 'uuidtools' from the controller to the model:

  class Game < ActiveRecord::Base

  before_save :create_permalink

  def create_permalink
    self.permalink = Base64.encode64(UUIDTools::UUID.random_create)[0..8]
  end  

  end

Did you run 'bundle install' to install the gem ?