App Store Connect Operation Error

Any help on the following upload failure would be helpful.
Not able to upload my latest app version due to "App sandbox not enabled". I haven't changed my sandbox settings but the Boolean value of 'true' seems to now be missing from the entitlements property list.
I would be grateful for any help.
Ed
Are you building with Xcode? If so, what version?

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Quinn “The Eskimo!” @ Developer Technical Support @ Apple
let myEmail = "eskimo" + "1" + "@" + "apple.com"
I am using Xcode 10.1.
Thank you for your reply
Ed
If you go to the Signing & Capabilities editor for your app’s target, do you see an App Sandbox entry?

Also, does your app use a single target? Or do you have other targets? And, if so, do any of those targets represent executables (helper apps, app extensions, helper tools)?

Share and Enjoy

Quinn “The Eskimo!” @ Developer Technical Support @ Apple
let myEmail = "eskimo" + "1" + "@" + "apple.com"
App Store Connect Operation Error
 
 
Q