iOS app crashes immediately after launch with ECONNREFUSED

Please provide the following:

  1. SDK Version: 36.0.0
  2. Platforms(Android/iOS/web/all): iOS

I’ve got an ejected app which builds fine in Xcode, but as soon as it’s launched on either a simulator or a physical device, it will crash after a few seconds of the splash screen.

It seems to be related to the app trying to connect to the expo bundler and not being to.

Here is my stack trace:

2020-02-11 16:28:47.528664-0600 find-a-well[831:16826] [] nw_socket_handle_socket_event [C1.1:2] Socket SO_ERROR [61: Connection refused]

2020-02-11 16:28:47.531011-0600 find-a-well[831:16826] [] nw_socket_handle_socket_event [C1.2:2] Socket SO_ERROR [61: Connection refused]

2020-02-11 16:28:47.531815-0600 find-a-well[831:16826] Connection 1: received failure notification

2020-02-11 16:28:47.532007-0600 find-a-well[831:16826] Connection 1: failed to connect 1:61, reason -1

2020-02-11 16:28:47.532132-0600 find-a-well[831:16826] Connection 1: encountered error(1:61)

2020-02-11 16:28:47.536974-0600 find-a-well[831:16826] Task <777C5E88-090F-4B8C-B322-A7BCC19AD29B>.<1> HTTP load failed, 0/0 bytes (error code: -1004 [1:61])

2020-02-11 16:28:47.540344-0600 find-a-well[831:16825] Task <777C5E88-090F-4B8C-B322-A7BCC19AD29B>.<1> finished with error [-1004] Error Domain=NSURLErrorDomain Code=-1004 "Could not connect to the server." UserInfo={NSUnderlyingError=0x6000037550e0 {Error Domain=kCFErrorDomainCFNetwork Code=-1004 "(null)" UserInfo={_kCFStreamErrorCodeKey=61, _kCFStreamErrorDomainKey=1}}, NSErrorFailingURLStringKey=http://localhost:8081/status, NSErrorFailingURLKey=http://localhost:8081/status, _kCFStreamErrorDomainKey=1, _kCFStreamErrorCodeKey=61, NSLocalizedDescription=Could not connect to the server.}

2020-02-11 16:28:47.958402-0600 find-a-well[831:16256] -[RCTCxxBridge redBox]: unrecognized selector sent to instance 0x7fed77c0c950

2020-02-11 16:28:48.406335-0600 find-a-well[831:16256] *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[RCTCxxBridge redBox]: unrecognized selector sent to instance 0x7fed77c0c950'

*** First throw call stack:

(

	0   CoreFoundation                      0x00007fff23c7127e __exceptionPreprocess + 350

	1   libobjc.A.dylib                     0x00007fff513fbb20 objc_exception_throw + 48

	2   CoreFoundation                      0x00007fff23c91fd4 -[NSObject(NSObject) doesNotRecognizeSelector:] + 132

	3   CoreFoundation                      0x00007fff23c75c4c ___forwarding___ + 1436

	4   CoreFoundation                      0x00007fff23c77f78 _CF_forwarding_prep_0 + 120

	5   find-a-well                         0x000000010038142b -[RCTCxxBridge handleError:] + 811

	6   find-a-well                         0x00000001003789e4 __21-[RCTCxxBridge start]_block_invoke.172 + 132

	7   find-a-well                         0x0000000100379c38 __38-[RCTCxxBridge loadSource:onProgress:]_block_invoke + 888

	8   find-a-well                         0x000000010037951f -[RCTCxxBridge loadSource:onProgress:] + 1599

	9   find-a-well                         0x0000000100377f09 -[RCTCxxBridge start] + 3001

	10  find-a-well                         0x000000010035dc4f -[RCTBridge setUp] + 815

	11  find-a-well                         0x000000010035ceb8 -[RCTBridge initWithDelegate:bundleURL:moduleProvider:launchOptions:] + 344

	12  find-a-well                         0x000000010035cbf6 -[RCTBridge initWithDelegate:launchOptions:] + 134

	13  find-a-well                         0x00000001002db4c7 -[AppDelegate application:didFinishLaunchingWithOptions:] + 295

	14  UIKitCore                           0x00007fff48089ad8 -[UIApplication _handleDelegateCallbacksWithOptions:isSuspended:restoreState:] + 232

	15  UIKitCore                           0x00007fff4808b460 -[UIApplication _callInitializationDelegatesWithActions:forCanvas:payload:fromOriginatingProcess:] + 3980

	16  UIKitCore                           0x00007fff48090f05 -[UIApplication _runWithMainScene:transitionContext:completion:] + 1226

	17  UIKitCore                           0x00007fff477c576d -[_UISceneLifecycleMultiplexer completeApplicationLaunchWithFBSScene:transitionContext:] + 122

	18  UIKitCore                           0x00007fff47cb44c1 _UIScenePerformActionsWithLifecycleActionMask + 83

	19  UIKitCore                           0x00007fff477c627f __101-[_UISceneLifecycleMultiplexer _evalTransitionToSettings:fromSettings:forceExit:withTransitionStore:]_block_invoke + 198

	20  UIKitCore                           0x00007fff477c5c8e -[_UISceneLifecycleMultiplexer _performBlock:withApplicationOfDeactivationReasons:fromReasons:] + 296

	21  UIKitCore                           0x00007fff477c60ac -[_UISceneLifecycleMultiplexer _evalTransitionToSettings:fromSettings:forceExit:withTransitionStore:] + 818

	22  UIKitCore                           0x00007fff477c5941 -[_UISceneLifecycleMultiplexer uiScene:transitionedFromState:withTransitionContext:] + 345

	23  UIKitCore                           0x00007fff477c9f3f __186-[_UIWindowSceneFBSSceneTransitionContextDrivenLifecycleSettingsDiffAction _performActionsForUIScene:withUpdatedFBSScene:settingsDiff:fromSettings:transitionContext:lifecycleActionType:]_block_invoke_2 + 178

	24  UIKitCore                           0x00007fff47bd8c83 +[BSAnimationSettings(UIKit) tryAnimatingWithSettings:actions:completion:] + 865

	25  UIKitCore                           0x00007fff47cd2dff _UISceneSettingsDiffActionPerformChangesWithTransitionContext + 240

	26  UIKitCore                           0x00007fff477c9c5a __186-[_UIWindowSceneFBSSceneTransitionContextDrivenLifecycleSettingsDiffAction _performActionsForUIScene:withUpdatedFBSScene:settingsDiff:fromSettings:transitionContext:lifecycleActionType:]_block_invoke + 153

	27  UIKitCore                           0x00007fff47cd2d02 _UISceneSettingsDiffActionPerformActionsWithDelayForTransitionContext + 84

	28  UIKitCore                           0x00007fff477c9ac8 -[_UIWindowSceneFBSSceneTransitionContextDrivenLifecycleSettingsDiffAction _performActionsForUIScene:withUpdatedFBSScene:settingsDiff:fromSettings:transitionContext:lifecycleActionType:] + 381

	29  UIKitCore                           0x00007fff476206e7 __64-[UIScene scene:didUpdateWithDiff:transitionContext:completion:]_block_invoke + 657

	30  UIKitCore                           0x00007fff4761f26c -[UIScene _emitSceneSettingsUpdateResponseForCompletion:afterSceneUpdateWork:] + 248

	31  UIKitCore                           0x00007fff47620411 -[UIScene scene:didUpdateWithDiff:transitionContext:completion:] + 210

	32  UIKitCore                           0x00007fff4808f599 -[UIApplication workspace:didCreateScene:withTransitionContext:completion:] + 535

	33  UIKitCore                           0x00007fff47bfa7f5 -[UIApplicationSceneClientAgent scene:didInitializeWithEvent:completion:] + 361

	34  FrontBoardServices                  0x00007fff365d6165 -[FBSSceneImpl _callOutQueue_agent_didCreateWithTransitionContext:completion:] + 442

	35  FrontBoardServices                  0x00007fff365fc4d8 __86-[FBSWorkspaceScenesClient sceneID:createWithParameters:transitionContext:completion:]_block_invoke.154 + 102

	36  FrontBoardServices                  0x00007fff365e0c45 -[FBSWorkspace _calloutQueue_executeCalloutFromSource:withBlock:] + 220

	37  FrontBoardServices                  0x00007fff365fc169 __86-[FBSWorkspaceScenesClient sceneID:createWithParameters:transitionContext:completion:]_block_invoke + 355

	38  libdispatch.dylib                   0x0000000101c16d48 _dispatch_client_callout + 8

	39  libdispatch.dylib                   0x0000000101c19cb9 _dispatch_block_invoke_direct + 300

	40  FrontBoardServices                  0x00007fff3662237e __FBSSERIALQUEUE_IS_CALLING_OUT_TO_A_BLOCK__ + 30

	41  FrontBoardServices                  0x00007fff3662206c -[FBSSerialQueue _queue_performNextIfPossible] + 441

	42  FrontBoardServices                  0x00007fff3662257b -[FBSSerialQueue _performNextFromRunLoopSource] + 22

	43  CoreFoundation                      0x00007fff23bd4471 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 17

	44  CoreFoundation                      0x00007fff23bd439c __CFRunLoopDoSource0 + 76

	45  CoreFoundation                      0x00007fff23bd3b74 __CFRunLoopDoSources0 + 180

	46  CoreFoundation                      0x00007fff23bce87f __CFRunLoopRun + 1263

	47  CoreFoundation                      0x00007fff23bce066 CFRunLoopRunSpecific + 438

	48  GraphicsServices                    0x00007fff384c0bb0 GSEventRunModal + 65

	49  UIKitCore                           0x00007fff48092d4d UIApplicationMain + 1621

	50  find-a-well                         0x00000001002d45e0 main + 112

	51  libdyld.dylib                       0x00007fff5227ec25 start + 1

)

libc++abi.dylib: terminating with uncaught exception of type NSException

Any assistance with this would be greatly appreciated!