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I have freshly installed macOS High Sierra and xcode 9.0.1 and run a simple program by adding a background image to imageView. My program run safely but dont know why I am getting this in console:

[App] if we're in the real pre-commit handler we can't actually add any new fences due to CA restriction

enter image description here

I am using Xcode 9.0.1 and iOS 11

I have reserached this, it was xcode 8 & ios 10 .

Apple Inc might have overcome to this bug yet or we will get this even in new & stable versions??

Xcodian Solangi
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  • Possible duplicate of [iOS 10: "\[App\] if we're in the real pre-commit handler we can't actually add any new fences due to CA restriction"](https://stackoverflow.com/questions/38458170/ios-10-app-if-were-in-the-real-pre-commit-handler-we-cant-actually-add-any) – Takasur Jan 31 '18 at 09:26
  • @Takasur this is an old question nothing can impact on this even i cannot delete this question, and this is totally different from something that have suggested – Xcodian Solangi Jan 31 '18 at 11:41

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I am with Xcode 9.1 which was released two days ago and a lot of weird bugs like this seem to have been fixed! Give it a try and if this behaviour persist add some screenshots or particular environment configurations info (if there are) to the post!

I had strange issues with the Developer Tools but now everything seems to work again perfectly.

They've also fixed the rendering issues with the simulators, so I strongly recommend to update Xcode and see if you get this bug again.

Andrea Vultaggio
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