I can't run my react-native app on ios Xcode - ios

Question

I'm having a real issue with running my react-native ios app. I installed Xcode (version 8.3.3) and all the other basic dependencies needed, all I did was:
react-native init AwesomeProject
cd AwesomeProject
react-native run-ios
And what happens is the AwesomeProject app opens for a second then closes. I also tried running it through xcode and get the same problem, although it is atleast reporting an error of:
2017-09-04 20:38:11.369 [info][tid:main][RCTCxxBridge.mm:188]
Initializing <RCTCxxBridge: 0x6000001a0540> (parent: <RCTBridge: 0x6000000a9a20>, executor: (null))
2017-09-04 20:38:11.390 [warn][tid:main][RCTBridge.m:114] Class RCTCxxModule was not exported. Did you forget to use RCT_EXPORT_MODULE()?
2017-09-04 20:38:11.404 [info][tid:main][RCTRootView.m:301] Running application AwesomeProject ({
initialProps = {
};
rootTag = 1;
})
2017-09-04 20:38:11.467 AwesomeProject[10363:1261593] -[NSTaggedPointerString unsignedIntValue]: unrecognized selector sent to instance 0xa383534303930327
2017-09-04 20:38:11.509 AwesomeProject[10363:1261593] *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[NSTaggedPointerString unsignedIntValue]: unrecognized selector sent to instance 0xa383534303930327'
*** First throw call stack:
(
0 CoreFoundation 0x000000010e4f4b0b __exceptionPreprocess + 171
1 libobjc.A.dylib 0x000000010d3aa141 objc_exception_throw + 48
2 CoreFoundation 0x000000010e564134 -[NSObject(NSObject) doesNotRecognizeSelector:] + 132
3 CoreFoundation 0x000000010e47b840 ___forwarding___ + 1024
4 CoreFoundation 0x000000010e47b3b8 _CF_forwarding_prep_0 + 120
5 AwesomeProject 0x000000010c7653f4 -[RCTMultipartStreamReader emitProgress:contentLength:final:callback:] + 244
6 AwesomeProject 0x000000010c765bea -[RCTMultipartStreamReader readAllPartsWithCompletionCallback:progressCallback:] + 1610
7 AwesomeProject 0x000000010c7b551c -[RCTMultipartDataTask URLSession:streamTask:didBecomeInputStream:outputStream:] + 444
8 CFNetwork 0x000000010df54c51 __88-[NSURLSession delegate_streamTask:didBecomeInputStream:outputStream:completionHandler:]_block_invoke + 51
9 Foundation 0x000000010ceb43b7 __NSBLOCKOPERATION_IS_CALLING_OUT_TO_A_BLOCK__ + 7
10 Foundation 0x000000010ceb40bb -[NSBlockOperation main] + 101
11 Foundation 0x000000010ceb2877 -[__NSOperationInternal _start:] + 627
12 Foundation 0x000000010ceae5fc __NSOQSchedule_f + 198
13 libdispatch.dylib 0x00000001121d605c _dispatch_client_callout + 8
14 libdispatch.dylib 0x00000001121b494f _dispatch_queue_serial_drain + 221
15 libdispatch.dylib 0x00000001121b5669 _dispatch_queue_invoke + 1084
16 libdispatch.dylib 0x00000001121b7ec4 _dispatch_root_queue_drain + 634
17 libdispatch.dylib 0x00000001121b7bef _dispatch_worker_thread3 + 123
18 libsystem_pthread.dylib 0x000000011256d5a2 _pthread_wqthread + 1299
19 libsystem_pthread.dylib 0x000000011256d07d start_wqthread + 13
)
libc++abi.dylib: terminating with uncaught exception of type NSException
(lldb)
And I then get brought to this page with the following Thread 8: signal SIGABRT error:
-> 0x112538d42 <+10>: jae 0x112538d4c ; <+20>
I have googled a lot with regards to the NSEXCEPTION yet I still cannot seem to even run my app. Any help would be much appreciated

Answer 1

Apparently there's an issue with react-native 0.48.0.
You can follow the thread below, it should be fixed with 0.48.1.
https://github.com/facebook/react-native/issues/15768
Edit: I can confirm 0.48.1 works fine. Update using:
npm install -g react-native-git-upgrade
react-native-git-upgrade