title: Rails: scaffolding command
body: <p>I would be appreciated if you could help me in this problem:</p>
  
  <p>I am using rails 3.2.11 and I have already installed </p>
  
  <pre><code>"gem installed scaffold"   
  </code></pre>
  
  <p>I do not know why it is not working for me</p>
  
  <pre><code>main$ rails generate scaffold idea name:string description:text picture:string
  </code></pre>
  
  <p>It give me this error:</p>
  
  <pre><code>Usage:  rails new APP_PATH [options]
  </code></pre>