JSON 解析错误：意外的标识符“RCTWebSocketModule”答案

【问题标题】：JSON Parse error: Unexpected identifier "RCTWebSocketModule"JSON 解析错误：意外的标识符“RCTWebSocketModule”
【发布时间】：2016-10-04 07:39:02
【问题描述】：

我已经升级了 react 和 react-native 依赖项。当我尝试在真实设备上构建和运行我的 react-native 应用程序时，我在 xcode 中得到以下堆栈跟踪，并且应用程序在启动后冻结在白屏上。

2016-10-04 12:33:37.501 [info][tid:main][RCTBatchedBridge.m:74]   Initializing <RCTBatchedBridge: 0x16575a10> (parent: <RCTBridge:   0x1658e200>, executor: RCTJSCExecutor)
2016-10-04 12:33:37.507136 ReactApp[237:7244] Initializing <RCTBatchedBridge: 0x16575a10> (parent: <RCTBridge: 0x1658e200>, executor: RCTJSCExecutor)
2016-10-04 12:33:37.695956 ReactApp[237:7292] [] __nw_connection_get_connected_socket_block_invoke 1 Connection has no connected handler
2016-10-04 12:33:37.780 [info][tid:main][RCTBatchedBridge.m:74] Initializing <RCTBatchedBridge: 0x16681ec0> (parent: <RCTBridge: 0x1658e200>, executor: RCTWebSocketExecutor)
2016-10-04 12:33:37.780715 ReactApp[237:7244] Initializing <RCTBatchedBridge: 0x16681ec0> (parent: <RCTBridge: 0x1658e200>, executor: RCTWebSocketExecutor)
2016-10-04 12:33:37.865 [warn][tid:com.facebook.react.RCTBridgeQueue][RCTModuleData.mm:287] Required dispatch_sync to load constants for RCTUIManager. This may lead to deadlocks
2016-10-04 12:33:37.866815 ReactApp[237:7292] Required dispatch_sync to load constants for RCTUIManager. This may lead to deadlocks
2016-10-04 12:33:38.274 [error][tid:com.facebook.react.JavaScript] JSON Parse error: Unexpected identifier "RCTWebSocketModule"
2016-10-04 12:33:38.274231 ReactApp[237:7303] JSON Parse error: Unexpected identifier "RCTWebSocketModule"
2016-10-04 12:33:38.281 [info][tid:com.facebook.react.JavaScript] 'Failed to print error: ', 'JSON Parse error: Unexpected identifier "RCTSourceCode"'
2016-10-04 12:33:38.281396 ReactApp[237:7303] 'Failed to print error: ', 'JSON Parse error: Unexpected identifier "RCTSourceCode"'
2016-10-04 12:33:38.286 [error][tid:com.facebook.react.JavaScript] Requiring module "185", which threw an exception.
2016-10-04 12:33:38.286470 ReactApp[237:7303] Requiring module "185", which threw an exception.
2016-10-04 12:33:38.287 [info][tid:com.facebook.react.JavaScript] 'Failed to print error: ', 'Requiring module "191", which threw an exception.'
2016-10-04 12:33:38.286985 ReactApp[237:7303] 'Failed to print error: ', 'Requiring module "191", which threw an exception.'

当我使用 android studio 运行同一个项目时，我得到以下堆栈跟踪：

E/ReactNativeJS: JSON Parse error: Unexpected identifier "UIManager"
I/ReactNativeJS: 'Failed to print error: ', 'JSON Parse error: Unexpected identifier "SourceCode"'
W/unknown:React: Packager connection already open, nooping.
E/ReactNativeJS: Module AppRegistry is not a registered callable module.
E/ReactNativeJS: Requiring module "173", which threw an exception.
I/ReactNativeJS: 'Failed to print error: ', 'Requiring module "173", which threw an exception.'
I/ReactNativeJS: 'Failed to print error: ', 'JSON Parse error: Unexpected identifier "ExceptionsManager"'

包.json

{
  "dependencies": {
    "react": "15.3.2",
    "react-dom": "15.3.2",
    "react-native": "^0.34.1",
    "react-native-animatable": "0.6.1",
    "react-native-collapsible": "0.7.0",
    "react-native-drawer": "2.2.6",
    "react-native-htmlview": "^0.5.0",
    "react-native-push-notification": "^2.1.1",
    "react-native-viewpager": "0.2.11",
    "react-redux": "4.4.5",
    "redux": "3.5.2",
    "redux-thunk": "2.1.0"
  }
}

【问题讨论】：

标签： javascript json facebook react-native

【解决方案1】：

我今晚遇到了这个。对我来说这是一个缓存问题。重新启动 React Native 打包器。

【讨论】：

【解决方案2】：

package.json 无效。这是来自 json-validator 的回复：

Error: Parse error on line 1: "dependencies": { "react": "1 --------------^ Expecting 'EOF', '}', ',', ']', got ':'

它必须是这样的：

{ "dependencies": { "react": "15.3.2", "react-dom": "15.3.2", "react-native": "^0.34.1", "react-native-animatable": "0.6.1", "react-native-collapsible": "0.7.0", "react-native-drawer": "2.2.6", "react-native-htmlview": "^0.5.0", "react-native-push-notification": "^2.1.1", "react-native-viewpager": "0.2.11", "react-redux": "4.4.5", "redux": "3.5.2", "redux-thunk": "2.1.0" } }

【讨论】：

我只添加了 Package.json 的依赖项 sn-p。这不是错误背后的原因。我在 Package.json 中有一个有效的 json

【解决方案3】：

与现有应用程序集成时，我遇到了同样的问题。我解决了。我在package.json 中的“react-native”版本代码与 Android 应用的不同。我使用 npm 安装相同的版本。

【讨论】：