App crashes on iPhone 5 / iOS 10.3 simulator and device

[NickIliev]

From @chrisse27 on May 18, 2018 20:52

Did you verify this is a real problem by searching the NativeScript Forum and the other open issues in this repo?

Yes.

Tell us about the problem

App crashes on IPhone 5 (Simulator and device). App does not crash on newer iPhone versions.

Which platform(s) does your issue occur on?

iOS

Please provide the following version numbers that your issue occurs with:

• CLI: 4.0.1 / 4.02
• Cross-platform modules: 4.0.0
• Runtime(s): 4.0.1

Please tell us how to recreate the issue in as much detail as possible.

tns create test-app
cd test-app
tns run ios (use iPhone 4S or 5 / iOS 8.4, 9.3 or 10.3)

The app crashes. This started happening with NS 4. It cannot be reproduced with NS 3.4.3. This is the log:

May 18 22:39:58 ChristophsMBP3 nscrashcore[26646]: assertion failed: 17E202 14E8301: libxpc.dylib + 65908 [099EE567-D51F-3277-B929-5FBFDFDE1116]: 0x7d
May 18 22:39:58 ChristophsMBP3 SpringBoard[22197]: [KeyboardArbiter] HW kbd: Failed to set (null) as keyboard focus
May 18 22:39:58 ChristophsMBP3 com.apple.CoreSimulator.SimDevice.10DFF776-A173-410A-ACED-299AEC32184B[22181] (UIKitApplication:org.nativescript.nscrashcore[0xab16][22202][26646]): Service exited due to Segmentation fault: 11
May 18 22:40:08 ChristophsMBP3 assertiond[22202]: Deleted job with label: UIKitApplication:org.nativescript.nscrashcore[0xab16][22202]

Is there code involved? If so, please share the minimal amount of code needed to recreate the problem.

No additional code involved

Copied from original issue: NativeScript/NativeScript#5837

[mbektchiev]

Hi @chrisse27,

Thank you for reporting this issue. We've managed to reproduce it using iOS Simulator, but according to our tests the crash doesn't occur on a real iPhone 5 device. We'll investigate further and keep you informed about any progress in fixing it.

[chrisse27]

Hi @mbektchiev,

thanks for looking into this. When running the app on the device (iPhone 5, iOS 8.2) I get the following error

file:///app/vendor.js:1:13865: JS ERROR ReferenceError: Can't find variable: UILayoutGuide

On iOS 10.3 it works for iPhone 5.

[mbektchiev]

@chrisse27 This error is expected because NativeScript core modules have dropped support for iOS 8.x since version 4.0. For more information on this matter see NativeScript v4.0 Breaking changes.

[chrisse27]

I see, thanks for the hint. So then it's really "only" a Simulator related issue.

[FBorgonjen]

Same problem occurs on iphone5 simulator running iOS 9.x with nativescript 4.1.1 Glad to hear that this is only a simulator related issue