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Ever since upgrading to iOS Beta 6 (and Beta 7) I have been unable to launch my SwiftUI app to my iPhone X. The app works fine on iOS Simulator.

Apple's Landmarks tutorial app also fails to boot to my device

I am on the latest version of Xcode (Beta 5)

I am not using any frameworks so this shouldn't be related

dyld: Symbol not found: _$s7SwiftUI7BindingVyxGAA0C11ConvertibleAAMc
  Referenced from: /var/containers/Bundle/Application/48A73B3C-4DED-46ED-8A93-6DEA1384F3FF/ProduceBuddy.app/ProduceBuddy
  Expected in: /System/Library/Frameworks/SwiftUI.framework/SwiftUI
 in /var/containers/Bundle/Application/48A73B3C-4DED-46ED-8A93-6DEA1384F3FF/ProduceBuddy.app/ProduceBuddy

I have tried re-pairing my device, restarting my computer/phone, cleaning build folder

annexrichmond
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  • Could you try something for me? Create a new app - I'm assuming `LaunchBuddy` is the name of your app. Does it work on your iPhoneX? If not, something is **definitely** wrong. But if it does work? Could you re-introduce code one-by-one (I know, a BIG pain) until you get this error? Right now there's been little here with an error like this and it's difficult to actually duplicate without this sort of effort. –  Aug 15 '19 at 18:56
  • This [was posted](https://stackoverflow.com/questions/57452325/after-upgrade-to-ios13-beta-6-xcode-11-beta-5-issue-dyld-symbol-not-found?r=SearchResults&s=3|0.0000) a few days ago. – rmaddy Aug 15 '19 at 18:57
  • Do you use `ObservableObject`? – perte Aug 15 '19 at 20:27
  • I created a new app from scratch and it boots to device successfully. Indeed, both my app and Apple's Landmarks tutorial app uses `ObservableObject` – annexrichmond Aug 16 '19 at 01:15
  • I have the same problem. For me, the problem occurs when you pass a property of an @EnvironmentObject to a subview, like a Toggle. – cbjeukendrup Aug 17 '19 at 17:04
  • @cbjeukendrup, check out if my answer on this helps you - it seems to work for me: https://stackoverflow.com/questions/57511826/change-to-published-var-in-environmentobject-not-reflected-immediately/57513103#57513103 –  Aug 19 '19 at 14:43

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I am no longer facing this issue upon upgrading to Xcode Beta 6. Thanks for the help everyone!

annexrichmond
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