title: Failed to save manifest. Error details: KeyValueMustBeNull
body: <p>I am trying to upload a new manifest for an application I have in the new Azure portal.  However, when I try to upload the manifest with the relevant certificate information I receive the following error:</p>
  
  <pre><code>Failed to save manifest. Error details: KeyValueMustBeNull
  </code></pre>
  
  <p><a href="https://i.stack.imgur.com/72x9U.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/72x9U.png" alt="enter image description here"></a></p>
  
  <p>I have tried both editing in the web browser and downloading/uploading the modified manifest with same results.  I can set the key value to null and have it save but my application cannot authenticate with the base64 key value as null.</p>