ITMS-90034: Missing or invalid signature

We have also been having the same issue intermittently since Monday, June 1st. Most of our builds have submitted fine, but several have failed due to the signing error. We are also using fastlane in a CI build, but nothing has changed, and our certs are not expired. Today, we have had multiple builds in a row, so it may have gone from intermittently broken to permanently broken. Any information about this would be greatly appreciated.

Trying with Application Loader I got another issue this time.
ERROR ITMS-90596: "Invalid Bundle. The asset catalog at 'Payload/xxx.app/Assets.car' can't be processed. Rebuild your app, and all included extensions and frameworks, with the latest GM version of Xcode and resubmit."

+1 Same issue

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Edit: Organizer won't let you upload the same binary again. I incremented the build version, archived and uploaded again, it worked. I changed NOTHING AT ALL.

Are uploads going to randomly fail now? On top of random errors that require you to restart XCode.

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EDIT: I succesfully uploaded my app to store after several try.

Same issue here. I tried to upload new build today. I changed nothing actually. After uplod my app I got email with message following:

ITMS-90034: Missing or invalid signature - The bundle 'com.myapp' at bundle path 'Payload/MyApp.app' is not signed using an Apple submission certificate.

I tried several times with different bundle numbers. Not solved yet.

Interestingly enough, we have had it failing randomly since Monday. I thought today it was finally completely broken. We had 2 builds in a row rejected this morning. The last 3 have gone up fine, though. Can Apple give us an update on this? It is obviously not something that all of us are doing wrong. Our build process signs the same way, with the same cert EVERY time. This is clearly on their end.

+1 had a few builds fail on June 3rd and now many apps deployed are failing today. Going to try and re upload now to see if it gets resolved as other have mentioned with re building.

Succeeded on 4th attempt. No change whatsoever except the mandatory build number increment of course.

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Same issue here.

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I have the same problem. Using Xcode 11.3.1
are you are using fastlane for submitions? may be is that messing around?

+1 Same

Had the same issue. Here is the solution: Delete the current signing certificate in the Keychain(Distribution/AppStore) and re-add the same certificate. It should fix it.

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I received from Apple's support the suggestion to remove the revoked certificates from the Keychain, leaving only the current one, which is valid (for my peace I did a bakup just before deleting the old certificates).
After that I retried and the upload was succesfull.

So I shared here this experience in the hope it could be beneficial to all, of at least some, of you.

Of course I'm going to replay to Apple support that this workaround shouldn't be the case closure. I'm going to report here eventual news.

apart from of this have you tried to install the certificates manually? and check that works or not?

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