title: Upload image_file using Ads API
body: <p>I'm trying to create a new Ad Creative for an event ad (<strong>Post-Migration</strong>), using the field <code>image_file</code>.</p>
  
  <p>Via the <strong>Graph API Explorer</strong> I send the following post request: </p>
  
  <blockquote>
    <p>URL: <a href="https://graph.facebook.com//act_xxxx/adcreatives" rel="nofollow">https://graph.facebook.com//act_xxxx/adcreatives</a> 
    <br><br>
    object_id: xxxxx 
    <br><br>
    body: body here 
    <br><br>
    title: title here 
    <br><br>
    name: name here 
    <br><br>
    image_file: @C:\Art.jpg
    <br></p>
  </blockquote>
  
  <p>I get the following exception response:</p>
  
  <blockquote>
    <p>"The Adcreative Create Failed for the following reason: Invalid image file: The image_file field does not specify a POST file name."</p>
  </blockquote>
  
  <p>Apparently I'm not using the image_file parameter right. How should I use it?</p>