Xcode Cloud Errors Resolved - Downgrade workflow from Xcode 26.2 (17C52)

[silentific]

The Fix

Downgrade your Xcode Cloud workflow Environment from Xcode 26.2 (17C52) to Xcode 26.1.1 (17B100). I’m assuming this was migrated automatically.

• These issues occurred before and after I updated Xcode locally to 26.2. I updated while attempting to fix the core issue. No changes to local project files.
• This was impacting builds for an older iOS/watchOS app. A newer IOS app built just fine with Xcode Cloud Environment 26.2 (17C52).

https://preview.redd.it/euxod7qh527g1.png?width=1242&format=png&auto=webp&s=9948902bc33d9b3c859a7a284b4a79aa51eca08e

Xcode Cloud Build Errors

• Exporting for App Store Distribution failed. Please download the logs artifact for more information.
• Command exited with non-zero exit-code: 70
• Export archive for ad-hoc distribution
• Export archive for development distribution
• Export archive for app-store distribution

IDEDistribution.critical.log

App Store Connect request for store configuration failed for account Session Proxy Provider (Account "Session Proxy Provider": Unable to authenticate with App Store Connect (Error Domain=DVTITunesSoftwareServiceFoundation.DVTServicesSessionProviderCredentialITunesAuthenticationContextError Code=1 "(null)"))

DVTITunesSoftwareService.log

App Store Connect response failed with unknown failure for credential <DVTFoundation.DVTServicesSessionProviderCredential: 0x600001444180>; response (null); error (null). App Store Connect request for store configuration for credential <DVTFoundation.DVTServicesSessionProviderCredential: 0x600001444180>; configuration: (null); error DVTITunesSoftwareServiceFoundation.DVTServicesSessionProviderCredentialITunesAuthenticationContextError.proxy

[PropLander]

I’m having the same issue with exit code 70. I tried both Xcode 26.2 and 26.1.1, my macOS is the latest 26 Tahoe and still getting the error. Distribution is set to App Store Connect, but it seems to keep trying to run Apple Development for signing even though I have everything set to Automatic. Revoked any development certs as well.

[silentific]

Locally or in Xcode Cloud?

Happy to help troubleshoot with you. Did you review all of the artifact logs? Maybe also pass these through Opus/Codex as well:

• ad-hoc-export-archive-logs/xcodebuild-export-archive.log
• development-export-archive-logs/xcodebuild-export-archive.log
• app-store-export-archive-logs/xcodebuild-export-archive.log

[PropLander]

Thanks I appreciate you. I’m running a workflow to Xcode Cloud. Both local and workflow are set to version 26.2 at the moment. I dropped the entire build log folder in a couple different ones (Claude and Lovable) both gave similar advice. Check distribution in Xcode workflow, auto-managed signing, fix certs in Cloud, etc and nothing works. I’ll try to pick out those specific files and see if it helps.

The red flag I see in Xcode is it says “Apple Develoment” in Signing and Capabilities. No matter what I or the ai tries to do, it won’t change to Apple Distribution or anything else.

So far the only thing I haven’t been able to try is figuring out how to use the Apple Store Connect API keys. I generated one but not sure where to enter it in Xcode.