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4.10.1 - iOS App Crashing on Launch

I am developing with UE4 on my Windows PC. Whenever I deploy my game straight from the editor via "Launch > All_iOS_on_Machine" and then launch the app on my iPhone 5s it crashes immediately.

HOWEVER, if I package the game for iOS, copy the ipa over to my mac, and install it on my iPhone via iTunes it runs flawlessly.

The map is modularly generated at run-time. No more than 35 actors are in the scene at any given moment, though 2/3 of them are set to move. As you can see from the image below my prototyping meshes are extremely simple. I am using one stationary directional light, and six static point lights, with none of them casting shadows.

testing

Frame rate on the actual mobile device is ~33ms.

I can only partially symbolicate the logs from my iPhone. They show two different threads that cause the crash but I simply cannot pinpoint the problem. Am I doing something fundamentally wrong or has anyone else faced this issue before?

I have uploaded the logs to dropbox if anyone can make sense of them: https://www.dropbox.com/sh/cl0z8xh53u5yw2c/AABajMpPwTtS1C5usOqoW9L5a?dl=0

Product Version: UE 4.10
Tags:
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asked Dec 15 '15 at 02:28 PM in Packaging & Deployment

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ewitti
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avatar image Adam Davis STAFF Dec 15 '15 at 09:13 PM

Hi ewitti,

  • Does this occur in a clean, blank project with no additional content or is it limited to one project?

  • What are the exact steps you are taking to launch the project to your device?

  • Does your Windows PC have the correct provisions to deploy to iOS devices and has the device been correctly registered?

avatar image ewitti Dec 16 '15 at 04:21 AM

Hi Adam,

Thanks for your quick response.

- Does this occur in a clean, blank project with no additional content or is it limited to one project?

It is limited to one project. I had originally migrated it from an older project of mine to make use of some blueprints.

- What are the exact steps you are taking to launch the project to your device?

I select the "Launch" option from the toolbar and then "All_iOS".

alt text

- Does your Windows PC have the correct provisions to deploy to iOS devices and has the device been correctly registered?

Yes.

I've noticed this morning that I was getting linking warnings so I fixed up the redirectors in all my folders. Low and behold, that seemed to have done the trick. The app deploys correctly straight through UE4 now! It is still somewhat odd that the previous ipa would launch if installed through iTunes, but hey, I'll take it :)

launch.png (20.5 kB)
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Hi ewitti,

I'm happy to hear that you have resolved your error. I am marking this as answered for tracking purposes. If you experience this error again, please post back here with updated repro steps and I'll be happy to take another look.

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answered Dec 16 '15 at 03:05 PM

avatar image ewitti Dec 21 '15 at 09:54 AM

Cheers Adam, so far no problems anymore :)

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