Xcode 9.3 build upload Error: Exception occurred when creating MZContentProviderUpload for provider. (1004)

Question

Error in upload builds on TestFlight/AppStore. I am using Xcode 9.3 and error throws:

An error occurred saving your changes to the Apple database. Exception occurred when creating MZContentProviderUpload for provider. (1004) An unknown error occurred.

Anyone help me why I am getting this error?

Answer 1

Looks like something's up with Apple's servers. I am getting the same error so this confirms that. I was able to upload my app earlier today but from the past one hour, it's not working.

UPDATE: Although the upload went through for me, the app is still stuck under processing. Looks like their servers are still acting up.

UPDATE 2: After waiting for an hour and a half, the app finally got processed.

Answer 2

This is the temporary issue with Apple Server. Please wait for an hour and try again. Thanks