WatchKit app hangs & crashes via Crashlytics

Question

Setup:

• Xcode 6.3.2
• iOS/WatchKit SDK 8.3

What Works:

• App groups are configured and tested to be working.
• Local development builds with development provisioning profiles work.
• I can build & debug to my Apple Watch hardware.
• Simulator also works (not that this matters).

Now, enter ad hoc distributions via Crashlytic using our CI (Jenkins) environment. The application is distributed fine, and installs on device fine.

But....

Issue:

• Launching the application once installed on the Watch (via Crashlytics) results in a spinner that hangs forvever.
• Eventually (after about a minute) the app crashes.
• I've stripped the application down to a single controller with a button (no networking or heavy async stuff going on).

To re-iterate - my local development builds to device work perfectly fine.

Any ideas!? Is there a way to get the logs for what is going on with the watch?

Answer 1

Fixed!

For anyone interested, we accidently had left a ARCHS='armv7' argument in our xcodebuild script.