Native watchOS 2 apps downloaded from App Store fail to launch with "FairPlay decryption failed on binary" error

Number:rdar://22705745 Date Originated:15-Sep-2015 11:47 AM
Status:Open Resolved:
Product:iOS Product Version:watchOS 2 GM, iOS 9 GM
Classification:Serious Bug Reproducible:Always
The first iOS 9 / watchOS 2 are starting to appear on the App Store, so I installed a few. However, I’m unable to launch the apps on my watch.

Steps to Reproduce:
- Download for iOS (or any other app with native watchOS 2 extension). 
- Install on your Apple Watch.
- Launch app.

Expected Results:
- App launches

Actual Results:
- App fail to launch, and get stuck in a loop with this error:
<Notice>: AppleFairplayTextCrypterSession::fairplayOpen() failed, error -42004
Sep 15 11:32:13 Ignacios-AppleWatch[1] ([353])

This seems like the same problem Marco Arment described here Many people on Twitter are reporting the same issue (to @jamesthomson) for example, so this seems like a huge problem.


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