在19.88s错误后无法在Xcode外部运行时，React Native ios应用程序崩溃，无法在场景中创建 [英] React Native ios app crashes when run outside of xcode with failed to scene-create after 19.88s error

问题描述

我的React Native应用程序在Xcode之外启动时崩溃，线程0的设备日志的崩溃报告中显示以下异常。

My react native app is crashing when launched outside of Xcode with the following exception showing up in the crash report on the device logs for thread 0.

    Incident Identifier: DB5E0F81-977F-44B0-BD8B-FAAF33F98119
CrashReporter Key:   e3b8d0751b47b37db0d7d6fcc5dde46051f8d30c
Hardware Model:      iPhone7,1
Process:             crashTest [388]
Path:                /var/mobile/Containers/Bundle/Application/CE56E818-7288-4A39-8220-16E17158C916/crashTest.app/crashTest
Identifier:          org.reactjs.native.example.crashTest
Version:             1 (1.0)
Code Type:           ARM-64 (Native)
Parent Process:      launchd [1]

Date/Time:           2017-04-25 12:42:30.30 -0400
Launch Time:         2017-04-25 12:42:10.10 -0400
OS Version:          iOS 9.1 (13B143)
Report Version:      105

Exception Type:  00000020
Exception Codes: 0x000000008badf00d
Exception Note:  SIMULATED (this is NOT a crash)
Highlighted by Thread:  0

Application Specific Information:
org.reactjs.native.example.crashTest failed to scene-create after 19.92s (launch took 0.08s of total time limit 20.00s)

Elapsed total CPU time (seconds): 9.230 (user 9.230, system 0.000), 23% CPU 
Elapsed application CPU time (seconds): 0.113, 0% CPU

Filtered syslog:
None found

Thread 0 name:  Dispatch queue: com.apple.main-thread
Thread 0:
0   libsystem_kernel.dylib          0x0000000199ff0a7c semaphore_wait_trap + 8
1   libdispatch.dylib               0x0000000199ece614 _dispatch_semaphore_wait_slow + 244
2   CFNetwork                       0x0000000184246ac0 CFURLConnectionSendSynchronousRequest + 288
3   CFNetwork                       0x000000018426a07c +[NSURLConnection sendSynchronousRequest:returningResponse:error:] + 120
4   crashTest                       0x0000000100128858 -[RCTBundleURLProvider isPackagerRunning:] (RCTBundleURLProvider.m:76)
5   crashTest                       0x0000000100128b00 -[RCTBundleURLProvider guessPackagerHost] (RCTBundleURLProvider.m:92)
6   crashTest                       0x0000000100128d10 -[RCTBundleURLProvider packagerServerHost] (RCTBundleURLProvider.m:106)
7   crashTest                       0x0000000100128ed4 -[RCTBundleURLProvider jsBundleURLForBundleRoot:fallbackResource:] (RCTBundleURLProvider.m:123)
8   crashTest                       0x000000010006a8cc -[AppDelegate application:didFinishLaunchingWithOptions:] (AppDelegate.m:21)
9   UIKit                           0x000000018a0f5324 -[UIApplication _handleDelegateCallbacksWithOptions:isSuspended:restoreState:] + 400
10  UIKit                           0x000000018a323acc -[UIApplication _callInitializationDelegatesForMainScene:transitionContext:] + 2904
11  UIKit                           0x000000018a327e0c -[UIApplication _runWithMainScene:transitionContext:completion:] + 1656
12  UIKit                           0x000000018a324f50 -[UIApplication workspaceDidEndTransaction:] + 168
13  FrontBoardServices              0x000000018e90b7c4 -[FBSSerialQueue _performNext] + 184
14  FrontBoardServices              0x000000018e90bb44 -[FBSSerialQueue _performNextFromRunLoopSource] + 56
15  CoreFoundation                  0x0000000184aa4544 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 24
16  CoreFoundation                  0x0000000184aa3fd8 __CFRunLoopDoSources0 + 540
17  CoreFoundation                  0x0000000184aa1cd8 __CFRunLoopRun + 724
18  CoreFoundation                  0x00000001849d0ca0 CFRunLoopRunSpecific + 384
19  UIKit                           0x000000018a0ee1c8 -[UIApplication _run] + 460
20  UIKit                           0x000000018a0e8ffc UIApplicationMain + 204
21  crashTest                       0x000000010006ad08 main (main.m:16)
22  libdyld.dylib                   0x0000000199eee8b8 start + 4

我了解我的应用启动和显示时间过长。如果我直接通过Xcode进行运行，并且没有将设备束缚在设备上，则不会出现任何问题（但是确实需要永久启动）。

I understand that my app is taking too long to launch and display. If I run directly from Xcode with my device tethered there are no issues (but it does take forever to launch)

我正在使用由 react-native init

在Xcode中构建项目时，会看到以下警告：

When I build the project in Xcode I see the following warning:

[tid:com.facebook.react.JavaScript][RCTModuleData.mm:220] RCTBridge required dispatch_sync to load RCTDevSettings. This may lead to deadlocks

我是本机反应的新手，我认为这可能正在运行在某种开发模式下，当我不受束缚或在其他网络上时，不允许我启动该应用程序？构建应用程序以在设备上独立运行而无需在Xcode中存档应用程序时，我是否需要遵循一些特殊说明？

I am new to react-native, and I am assuming maybe this is running in some sort of dev mode that does not allow me to launch the app when un-tethered or on a different network? Are there special instructions I am missing that I need to follow when building the app to run independently on the device without having to archive the app in Xcode?

推荐答案

检查您是否连接到相同的WiFi网络。刚刚有这个。

Check if you're connected to the same WiFi network. Just had this.

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