iOS App is crashing due to NSInvalidArgumentException - [_NSConcreteBlockSinkObservation superlayer] error - ios

Here is the detailed error description that I am receiving in debugger bar
*** Terminating app due to uncaught exception
'NSInvalidArgumentException', reason:
'-[_NSConcreteBlockSinkObservation superlayer]: unrecognized selector
sent to instance 0x6000005a4000'
Why this is happening and what will be the solution to it?
Update:
I tried to remove some lines of code for testing, then I found another error like below
[__NSDictionaryM superlayer]: unrecognized selector sent to instance
0x6000008e8ee0

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Sometimes I am getting the following error on this line.
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This works on the iOS simulator, so I wonder if its an iOS compatibility issue?
The Movies example app works ok on this device.
```
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That's why you are seeing the crash.
See the docs here for more info: https://developer.apple.com/library/ios/documentation/Foundation/Reference/NSURLComponents_class/index.html#//apple_ref/occ/instp/NSURLComponents/queryItems
Setting an exception breakpoint will show you which class/method is making that call. Otherwise, it sounds like react-native is calling queryItems when it shouldn't.

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