title: Rails 4 image_tag('image.png') not working
body: <p>I have a rails 2.3 app that has these image files in the public directory:</p>
  
  <pre><code>public/images/tools/projects.png
  public/images/tools/languages.png
  public/images/tools/repositories.png
  </code></pre>
  
  <p>I went directly into these files copied the contents and then pasted them in my rails 4 app in these directories:</p>
  
  <pre><code>app/assets/images/tools/projects.png
  app/assets/images/tools/languages.png
  app/assets/images/tools/repositories.png
  </code></pre>
  
  <p>In my view file I refer to these files like so: (HAML file)</p>
  
  <pre><code> = image_tag('tools/projects.png', alt: 'Projects')
  </code></pre>
  
  <p>When I do this my image is broken. I've tried changing the path in image tag to this:</p>
  
  <pre><code> = image_tag('app/assets/images/tools/projects.png', alt: 'Projects')
   = image_tag('projects.png', alt: 'Projects')
   = image_tag('assets/images/tools/projects.png', alt: 'Projects')
   = image_tag('images/tools/projects.png', alt: 'Projects')
  </code></pre>
  
  <p>None of these options are working. All the other images are working. I'm assuming that copy and pasting the image contents was not the right thing to do.</p>
  
  <pre><code>8950 4e47 0d0a 1a0a 0000 000d 4948 4452 etc.
  </code></pre>
  
  <p>I've copied and pasted multiple times so I'm certain that I have all the codes.</p>
  
  <p>------EDIT-----</p>
  
  <p>I tried the same source paths except I forgot to add a slash at the beginning. However it still failed.</p>
  
  <pre><code>/images/tools/projects.png
  </code></pre>