title: ImageKit does not show thumbnail on Django Admin
body: <p>I have deployed an ubuntu server running Django. For image thumbnailing am using PILLOW and ImageKit. When I try to save an entry the main ImageFile is saved and the thumbnail is created aswell but once I save I get a server error 500. Once I reload the same page the entry loads but shows no thumbnail and once I click on the thumbnail i get a 404 Not found on the browser.</p>
  
  <p>My nginx config is below :</p>
  
  <pre><code>    upstream app_server {
      server 127.0.0.1:9000 fail_timeout=0;
  }
  
  server {
      listen 80 default_server;
      listen [::]:80 default_server ipv6only=on;
  
      root /usr/share/nginx/html;
      index index.html index.htm;
  
      client_max_body_size 4G;
      server_name _;
  
      keepalive_timeout 5;
  
      # Your Django project's media files - amend as required
      location /media  {
          alias /home/django/django_project/media;
      }
  
      # your Django project's static files - amend as required
      location /static {
          alias /home/django/django_project/static;
      }
  
      # Proxy the static assests for the Django Admin panel
  
  
      location / {
          proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
          proxy_set_header Host $http_host;
          proxy_redirect off;
          proxy_pass http://app_server;
      }
  }
  </code></pre>
  
  <p>The media files ares served correctly. My question now is, shall i create another variable that points to the thumbnail path? Any ideas? </p>
  
  <p>Error listed Below :</p>
  
  <pre><code>    IOError at /admin/profiles/districtheatingreference/
  decoder jpeg not available
  Request Method: GET
  Request URL:    http://178.62.67.237/admin/profiles/districtheatingreference/
  Django Version: 1.7.2
  Exception Type: IOError
  Exception Value:    
  decoder jpeg not available
  Exception Location: /usr/local/lib/python2.7/dist-packages/PIL/Image.py in _getdecoder, line 419
  Python Executable:  /usr/bin/python
  Python Version: 2.7.6
  Python Path:    
  ['/home/django/django_project',
   '/home/django',
   '/usr/bin',
   '/usr/lib/python2.7',
   '/usr/lib/python2.7/plat-x86_64-linux-gnu',
   '/usr/lib/python2.7/lib-tk',
   '/usr/lib/python2.7/lib-old',
   '/usr/lib/python2.7/lib-dynload',
   '/usr/local/lib/python2.7/dist-packages',
   '/usr/lib/python2.7/dist-packages']
  Server time:    Tue, 5 May 2015 10:37:20 +0000
  Error during template rendering
  
  In template /usr/local/lib/python2.7/dist-packages/imagekit/templates/imagekit/admin/thumbnail.html, error at line 1
  decoder jpeg not available
  1   {% if thumbnail %}
  2       &lt;a href="{{ model.get_absolute_url|default:original_image.url }}"&gt;
  3           &lt;img src="{{ thumbnail.url }}"&gt;
  4       &lt;/a&gt;
  5   {% endif %}
  </code></pre>
  
  <p>NGINX LOG :</p>
  
  <pre><code>2015/05/05 06:01:43 [error] 1185#0: *1565 open() "/home/django/django_project/media/CACHE/images/images/ShanRoberts_NWales_Vitocal300A_reEvISt/66ad91e0b184febc1b8b71d00e67bff0.JPG" failed (2: No such file or directory), client: 81.143.88.153, server: _, request: "GET /media/CACHE/images/images/ShanRoberts_NWales_Vitocal300A_reEvISt/66ad91e0b184febc1b8b71d00e67bff0.JPG HTTP/1.1", host: "178.62.67.237", referrer: "http://178.62.67.237/admin/profiles/residentialreference/"
  2015/05/05 06:01:43 [error] 1185#0: *1578 open() "/home/django/django_project/media/CACHE/images/images/ShanRoberts_NWales_Vitocal300A_reEvISt/66ad91e0b184febc1b8b71d00e67bff0.JPG" failed (2: No such file or directory), client: 81.143.88.153, server: _, request: "GET /media/CACHE/images/images/ShanRoberts_NWales_Vitocal300A_reEvISt/66ad91e0b184febc1b8b71d00e67bff0.JPG HTTP/1.1", host: "178.62.67.237", referrer: "http://178.62.67.237/admin/profiles/residentialreference/"
  2015/05/05 06:01:43 [error] 1185#0: *1577 open() "/home/django/django_project/media/CACHE/images/images/ShanRoberts_NWales_Vitocal300A_reEvISt/66ad91e0b184febc1b8b71d00e67bff0.JPG" failed (2: No such file or directory), client: 81.143.88.153, server: _, request: "GET /media/CACHE/images/images/ShanRoberts_NWales_Vitocal300A_reEvISt/66ad91e0b184febc1b8b71d00e67bff0.JPG HTTP/1.1", host: "178.62.67.237"
  2015/05/05 06:01:45 [error] 1185#0: *1577 open() "/home/django/django_project/media/CACHE/images/images/ShanRoberts_NWales_Vitocal300A_reEvISt/66ad91e0b184febc1b8b71d00e67bff0.JPG" failed (2: No such file or directory), client: 81.143.88.153, server: _, request: "GET /media/CACHE/images/images/ShanRoberts_NWales_Vitocal300A_reEvISt/66ad91e0b184febc1b8b71d00e67bff0.JPG HTTP/1.1", host: "178.62.67.237", referrer: "http://178.62.67.237/admin/profiles/residentialreference/"
  2015/05/05 06:01:56 [error] 1185#0: *1583 open() "/home/django/django_project/media/CACHE/images/images/ShanRoberts_NWales_Vitocal300A_reEvISt/66ad91e0b184febc1b8b71d00e67bff0.JPG" failed (2: No such file or directory), client: 81.143.88.153, server: _, request: "GET /media/CACHE/images/images/ShanRoberts_NWales_Vitocal300A_reEvISt/66ad91e0b184febc1b8b71d00e67bff0.JPG HTTP/1.1", host: "178.62.67.237", referrer: "http://178.62.67.237/admin/profiles/residentialreference/"
  2015/05/05 06:02:02 [error] 1185#0: *1585 open() "/home/django/django_project/media/CACHE/images/images/ShanRoberts_NWales_Vitocal300A_reEvISt/66ad91e0b184febc1b8b71d00e67bff0.JPG" failed (2: No such file or directory), client: 81.143.88.153, server: _, request: "GET /media/CACHE/images/images/ShanRoberts_NWales_Vitocal300A_reEvISt/66ad91e0b184febc1b8b71d00e67bff0.JPG HTTP/1.1", host: "178.62.67.237", referrer: "http://178.62.67.237/admin/profiles/residentialreference/"
  2015/05/05 06:02:02 [error] 1185#0: *1584 open() "/home/django/django_project/media/CACHE/images/images/ShanRoberts_NWales_Vitocal300A_reEvISt/66ad91e0b184febc1b8b71d00e67bff0.JPG" failed (2: No such file or directory), client: 81.143.88.153, server: _, request: "GET /media/CACHE/images/images/ShanRoberts_NWales_Vitocal300A_reEvISt/66ad91e0b184febc1b8b71d00e67bff0.JPG HTTP/1.1", host: "178.62.67.237", referrer: "http://178.62.67.237/admin/profiles/residentialreference/"
  2015/05/05 06:02:02 [error] 1185#0: *1584 open() "/home/django/django_project/media/CACHE/images/images/ShanRoberts_NWales_Vitocal300A_reEvISt/66ad91e0b184febc1b8b71d00e67bff0.JPG" failed (2: No such file or directory), client: 81.143.88.153, server: _, request: "GET /media/CACHE/images/images/ShanRoberts_NWales_Vitocal300A_reEvISt/66ad91e0b184febc1b8b71d00e67bff0.JPG HTTP/1.1", host: "178.62.67.237"
  2015/05/05 06:02:06 [error] 1185#0: *1584 open() "/home/django/django_project/media/CACHE/images/images/ShanRoberts_NWales_Vitocal300A_reEvISt/66ad91e0b184febc1b8b71d00e67bff0.JPG" failed (2: No such file or directory), client: 81.143.88.153, server: _, request: "GET /media/CACHE/images/images/ShanRoberts_NWales_Vitocal300A_reEvISt/66ad91e0b184febc1b8b71d00e67bff0.JPG HTTP/1.1", host: "178.62.67.237", referrer: "http://178.62.67.237/admin/profiles/residentialreference/"
  2015/05/05 06:03:31 [error] 1185#0: *1590 open() "/home/django/django_project/media/CACHE/images/images/ShanRoberts_NWales_Vitocal300A_reEvISt/66ad91e0b184febc1b8b71d00e67bff0.JPG" failed (2: No such file or directory), client: 81.143.88.153, server: _, request: "GET /media/CACHE/images/images/ShanRoberts_NWales_Vitocal300A_reEvISt/66ad91e0b184febc1b8b71d00e67bff0.JPG HTTP/1.1", host: "178.62.67.237"
  2015/05/05 06:03:36 [error] 1185#0: *1590 open() "/home/django/django_project/media/CACHE/images/images/ShanRoberts_NWales_Vitocal300A_reEvISt/66ad91e0b184febc1b8b71d00e67bff0.JPG" failed (2: No such file or directory), client: 81.143.88.153, server: _, request: "GET /media/CACHE/images/images/ShanRoberts_NWales_Vitocal300A_reEvISt/66ad91e0b184febc1b8b71d00e67bff0.JPG HTTP/1.1", host: "178.62.67.237", referrer: "http://178.62.67.237/admin/profiles/residentialreference/"
  2015/05/05 06:11:21 [error] 1185#0: *1603 open() "/home/django/django_project/media/CACHE/images/images/ShanRoberts_NWales_Vitocal300A_reEvISt/66ad91e0b184febc1b8b71d00e67bff0.JPG" failed (2: No such file or directory), client: 81.143.88.153, server: _, request: "GET /media/CACHE/images/images/ShanRoberts_NWales_Vitocal300A_reEvISt/66ad91e0b184febc1b8b71d00e67bff0.JPG HTTP/1.1", host: "178.62.67.237", referrer: "http://178.62.67.237/admin/profiles/residentialreference/"
  2015/05/05 06:11:25 [error] 1185#0: *1598 open() "/home/django/django_project/media/CACHE/images/images/ShanRoberts_NWales_Vitocal300A_reEvISt/66ad91e0b184febc1b8b71d00e67bff0.JPG" failed (2: No such file or directory), client: 81.143.88.153, server: _, request: "GET /media/CACHE/images/images/ShanRoberts_NWales_Vitocal300A_reEvISt/66ad91e0b184febc1b8b71d00e67bff0.JPG HTTP/1.1", host: "178.62.67.237", referrer: "http://178.62.67.237/admin/profiles/residentialreference/"
  2015/05/05 06:11:25 [error] 1185#0: *1603 open() "/home/django/django_project/media/CACHE/images/images/ShanRoberts_NWales_Vitocal300A_reEvISt/66ad91e0b184febc1b8b71d00e67bff0.JPG" failed (2: No such file or directory), client: 81.143.88.153, server: _, request: "GET /media/CACHE/images/images/ShanRoberts_NWales_Vitocal300A_reEvISt/66ad91e0b184febc1b8b71d00e67bff0.JPG HTTP/1.1", host: "178.62.67.237", referrer: "http://178.62.67.237/admin/profiles/residentialreference/"
  2015/05/05 06:11:25 [error] 1185#0: *1603 open() "/home/django/django_project/media/CACHE/images/images/ShanRoberts_NWales_Vitocal300A_reEvISt/66ad91e0b184febc1b8b71d00e67bff0.JPG" failed (2: No such file or directory), client: 81.143.88.153, server: _, request: "GET /media/CACHE/images/images/ShanRoberts_NWales_Vitocal300A_reEvISt/66ad91e0b184febc1b8b71d00e67bff0.JPG HTTP/1.1", host: "178.62.67.237"
  2015/05/05 06:12:31 [error] 1185#0: *1625 open() "/home/django/django_project/media/CACHE/images/images/ShanRoberts_NWales_Vitocal300A_cyxxLNn/fe87a38155418f621c48de1937234bdd.JPG" failed (2: No such file or directory), client: 81.143.88.153, server: _, request: "GET /media/CACHE/images/images/ShanRoberts_NWales_Vitocal300A_cyxxLNn/fe87a38155418f621c48de1937234bdd.JPG HTTP/1.1", host: "178.62.67.237", referrer: "http://178.62.67.237/admin/profiles/residentialreference/"
  2015/05/05 06:12:31 [error] 1185#0: *1624 open() "/home/django/django_project/media/CACHE/images/images/ShanRoberts_NWales_Vitocal300A_cyxxLNn/fe87a38155418f621c48de1937234bdd.JPG" failed (2: No such file or directory), client: 81.143.88.153, server: _, request: "GET /media/CACHE/images/images/ShanRoberts_NWales_Vitocal300A_cyxxLNn/fe87a38155418f621c48de1937234bdd.JPG HTTP/1.1", host: "178.62.67.237", referrer: "http://178.62.67.237/admin/profiles/residentialreference/"
  2015/05/05 06:12:31 [error] 1185#0: *1624 open() "/home/django/django_project/media/CACHE/images/images/ShanRoberts_NWales_Vitocal300A_cyxxLNn/fe87a38155418f621c48de1937234bdd.JPG" failed (2: No such file or directory), client: 81.143.88.153, server: _, request: "GET /media/CACHE/images/images/ShanRoberts_NWales_Vitocal300A_cyxxLNn/fe87a38155418f621c48de1937234bdd.JPG HTTP/1.1", host: "178.62.67.237"
  2015/05/05 06:12:33 [error] 1185#0: *1624 open() "/home/django/django_project/media/CACHE/images/images/ShanRoberts_NWales_Vitocal300A_cyxxLNn/fe87a38155418f621c48de1937234bdd.JPG" failed (2: No such file or directory), client: 81.143.88.153, server: _, request: "GET /media/CACHE/images/images/ShanRoberts_NWales_Vitocal300A_cyxxLNn/fe87a38155418f621c48de1937234bdd.JPG HTTP/1.1", host: "178.62.67.237", referrer: "http://178.62.67.237/admin/profiles/residentialreference/"
  2015/05/05 06:22:42 [error] 1185#0: *1656 open() "/home/django/django_project/media/CACHE/images/images/ShanRoberts_NWales_Vitocal300A_xgGCGrG/9b80392126e96993a428384064177ef4.JPG" failed (2: No such file or directory), client: 81.143.88.153, server: _, request: "GET /media/CACHE/images/images/ShanRoberts_NWales_Vitocal300A_xgGCGrG/9b80392126e96993a428384064177ef4.JPG HTTP/1.1", host: "178.62.67.237", referrer: "http://178.62.67.237/admin/profiles/residentialreference/"
  2015/05/05 06:22:42 [error] 1185#0: *1658 open() "/home/django/django_project/media/CACHE/images/images/ShanRoberts_NWales_Vitocal300A_xgGCGrG/9b80392126e96993a428384064177ef4.JPG" failed (2: No such file or directory), client: 81.143.88.153, server: _, request: "GET /media/CACHE/images/images/ShanRoberts_NWales_Vitocal300A_xgGCGrG/9b80392126e96993a428384064177ef4.JPG HTTP/1.1", host: "178.62.67.237", referrer: "http://178.62.67.237/admin/profiles/residentialreference/"
  2015/05/05 06:22:43 [error] 1185#0: *1652 open() "/home/django/django_project/media/CACHE/images/images/ShanRoberts_NWales_Vitocal300A_xgGCGrG/9b80392126e96993a428384064177ef4.JPG" failed (2: No such file or directory), client: 81.143.88.153, server: _, request: "GET /media/CACHE/images/images/ShanRoberts_NWales_Vitocal300A_xgGCGrG/9b80392126e96993a428384064177ef4.JPG HTTP/1.1", host: "178.62.67.237"
  </code></pre>