一、BUG记录
在项目当中引入react-navition（2.13.0），运行的时候出现了以下错误：
TypeError: undefined is not an object (evaluating 'context.changedBits')
This error is located at:
in SceneView (at SwitchView.js:12)
in SwitchView (at createNavigator.js:57)
in Navigator (at createNavigationContainer.js:376)
in NavigationContainer (at Launch.js:181)
in MySwitchNavigatorPage (at App.js:23)
in Provider (at App.js:22)
in App (at CodePush.js:510)
in CodePushComponent (at TopView.js:214)
in RCTView (at View.js:78)
in View (at TopView.js:196)
in PureView (at TopView.js:165)
in RCTView (at View.js:78)
in View (at createAnimatedComponent.js:147)
in AnimatedComponent (at TopView.js:164)
in RCTView (at View.js:78)
in View (at TopView.js:163)
in TopView (at TopView.js:213)
in RootElement (at renderApplication.js:35)
in RCTView (at View.js:78)
in View (at AppContainer.js:102)
in RCTView (at View.js:78)
in View (at AppContainer.js:122)
in AppContainer (at renderApplication.js:34)
pushProvider
index.delta?platform=android&dev=true&minify=false:8052:44
updateContextProvider
index.delta?platform=android&dev=true&minify=false:8567:23
beginWork
index.delta?platform=android&dev=true&minify=false:8682:43
performUnitOfWork
index.delta?platform=android&dev=true&minify=false:10568:31
workLoop
index.delta?platform=android&dev=true&minify=false:10619:49
invokeGuardedCallback
index.delta?platform=android&dev=true&minify=false:2753:21
invokeGuardedCallback
index.delta?platform=android&dev=true&minify=false:2822:40
renderRoot
index.delta?platform=android&dev=true&minify=false:10670:36
performWorkOnRoot
index.delta?platform=android&dev=true&minify=false:11295:40
performWork
index.delta?platform=android&dev=true&minify=false:11231:32
performSyncWork
index.delta?platform=android&dev=true&minify=false:11212:22
requestWork
index.delta?platform=android&dev=true&minify=false:11139:28
scheduleWorkImpl
index.delta?platform=android&dev=true&minify=false:11012:28
scheduleWork
index.delta?platform=android&dev=true&minify=false:10972:34
scheduleRootUpdate
index.delta?platform=android&dev=true&minify=false:11530:23
updateContainerAtExpirationTime
index.delta?platform=android&dev=true&minify=false:11555:36
updateContainer
index.delta?platform=android&dev=true&minify=false:11575:51
render
index.delta?platform=android&dev=true&minify=false:12014:41
renderApplication
index.delta?platform=android&dev=true&minify=false:58997:23
run
index.delta?platform=android&dev=true&minify=false:58655:35
runApplication
index.delta?platform=android&dev=true&minify=false:58705:28
__callFunction
index.delta?platform=android&dev=true&minify=false:2380:49
<unknown>
index.delta?platform=android&dev=true&minify=false:2150:31
__guardSafe
index.delta?platform=android&dev=true&minify=false:2342:13
callFunctionReturnFlushedQueue
index.delta?platform=android&dev=true&minify=false:2149:21
二、相关库版本
"react": "^16.3.0-alpha.1",
"react-native": "0.54.2",
"react-navigation": "^2.13.1",
三、BUG原因
库版本不兼容或者包冲突。
Github相关issues：https://github.com/react-navigation/react-navigation/issues/4375
四、解决方案
将react-native版本升级为0.55.4，react版本升级为16.3.1，再重新运行项目就OK了。