Unity -> Xcode 'Unknown Error Occurred' after it says running on device

Questions & Answers
1

To preface, I am pretty unfamiliar with macs and xcode, that said I was able to successfully build to my iphone 3gs multiple times with my latest app, however recently any build I attempt from any project, even a fresh ios test app results in it compiling but fails to run. It will say its running then eventually say ‘Unknown error has occurred’

I’ve tried:

  • New project
  • Re-adding provisioning profiles
  • Updating iOS to latest 6.x version
  • New devices can receive the app fine

Details:

  • Unity 4.3.4
  • Xcode 5.1 on Snowleopard 10.8 VM
  • iPhone 3GS with latest iOS 6.x

Has anyone experienced anything like this? It’s been extremely frustrating and I can’t seem to find any leads on this. Most error messages usually spit out an actual error message.

Thanks in advance

Jeff

2

Have you tried simulator? It will let you to jump into problem or reason causing this

3

After exhausting tons of effort, what finally worked for me was:

  • Archive it from Xcode to create an ipa
  • Get that ipa onto your PC
  • Use iFunBox to install it under Fast Install Mode

Hope that helps someone else in the same situation!

4

For those experiencing this in 2018, I managed to fix this error by closing all apps on my iPhone (7 Plus) and restarting XCode.