title: Could not find bcrypt-3.1.7 in any of the sources
body: <p>I have installed bcrypt using the command</p>
  
  <p><strong>gem install bcrypt</strong></p>
  
  <p>I can confirm that it is installed in my gem folder both local and @global and it is the correct version '3.1.7'. And... I have added the following line to my project:</p>
  
  <p><strong>gem 'bcrypt', '~> 3.1.7'</strong></p>
  
  <p>When I run <strong>bundle install</strong> I get this...</p>
  
  <p><strong>Your bundle is complete!</strong></p>
  
  <p>However when I issue this command:</p>
  
  <p><strong>rails generate devise:install</strong></p>
  
  <p>I get the following...</p>
  
  <pre><code>Could not find bcrypt-3.1.7 in any of the sources
  Run `bundle install` to install missing gems.
  user-pc:blog user$ 
  </code></pre>
  
  <p>I have even run:</p>
  
  <p><strong>bundle list</strong></p>
  
  <p>And I get a list of installed bundles and bcrypt 3.1.7 shows up!!</p>