当我试图在iOS 8上启动我的RN应用程序时，我得到了这个奇怪的错误：Unhandled JS Exception: SyntaxError
这就是全部，而不是更多信息。
有没有人偶然发现了这个问题？
在iOs 9+应用程序上运行正常。
xCode版本：8.1。来自xCode的日志：
2016-12-07 16:33:57.073 [info][tid:main][RCTBatchedBridge.m:73] Initializing <RCTBatchedBridge: 0x7fc36c72ae80> (parent: <RCTBridge: 0x7fc36c060920>, executor: RCTJSCExecutor)
2016-12-07 16:34:29.369 [warn][tid:com.facebook.react.JavaScript][RCTBatchedBridge.m:509] Failed to execute source code: Unhandled JS Exception: SyntaxError
2016-12-07 16:34:29.369 [fatal][tid:main] Unhandled JS Exception: SyntaxError
我的package.json：
{
"name": "...",
"version": "0.0.1",
"private": true,
"scripts": {
"start": "node node_modules/react-native/local-cli/cli.js start",
"test": "jest"
},
"dependencies": {
"fbjs": "^0.8.6",
"moment": "^2.16.0",
"react": "15.3.2",
"react-native": "^0.37.0",
"react-native-chart": "^1.0.8-beta",
"react-native-gifted-chat": "0.0.10",
"react-native-image-picker": "^0.23.0",
"react-native-image-progress": "^0.6.0",
"react-native-locale": "0.0.11",
"react-native-material-kit": "^0.3.3",
"react-native-message-bar": "^1.6.0",
"react-native-modal-datetime-picker": "^3.0.0",
"react-native-modal-picker": "0.0.16",
"react-native-router-flux": "^3.37.0",
"react-native-timer": "^1.1.2",
"shortid": "^2.2.6"
},
"jest": {
"preset": "jest-react-native"
},
"devDependencies": {
"babel-jest": "17.0.0",
"babel-preset-react-native": "1.9.0",
"jest": "17.0.1",
"jest-react-native": "17.0.1",
"react-test-renderer": "15.3.2",
"whatwg-fetch": "1.0.0"
}
}
Node，npm和react-native verisons：
adamt@Dev-2 ~/D/G/myApp> npm -v
4.0.2
adamt@Dev-2 ~/D/G/myApp> node -v
v4.4.4
adamt@Dev-2 ~/D/G/myApp> react-native -v
react-native-cli: 1.2.0
react-native: 0.37.0
对此错误发生原因的任何帮助都会受到欢迎！
答案 0 :(得分：1)
React Native版本0.39存在问题。
您需要在node_modeles / react-native / Libraries / Core / InitializeCore.js的第30行中注释掉＆＃39; use strict＆＃39;; ：
// 'use strict'; Fix to RN 0.39 - https://github.com/facebook/react-native/issues/11389
或者，您可以返回React Native版本0.38。