title: Xcode 9.3 build upload Error: Exception occurred when creating MZContentProviderUpload for provider. (1004)
body: <p>Error in upload builds on TestFlight/AppStore. I am using Xcode 9.3 and error throws:</p>
  
  <p>An error occurred saving your changes to the Apple database. Exception occurred when creating MZContentProviderUpload for provider. (1004) An unknown error occurred.</p>
  
  <p>Anyone help me why I am getting this error?</p>
  
  <p><a href="https://i.stack.imgur.com/sOb6a.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/sOb6a.png" alt="enter image description here"></a></p>