React-Native无法获得batchedBridge错误

我是React Native（版本0.40.0）的初学者，我在开发项目时遇到了问题 . 当我运行 npm start （npm version-4.6.0）时，我没有错误，打包器正常启动 . 运行 react-native run-android 也不会出现任何错误，但是当应用程序在Android模拟器（Nexus 6 API 23）中启动时，我会看到"Unfortunately app had to be closed"通知 . Android Studio中的日志是：

07-22 04:56:15.504 5325-5353/com.downtofood E/AndroidRuntime: FATAL EXCEPTION: mqt_js
                                                          Process: com.downtofood, PID: 5325
                                                          java.lang.RuntimeException: com.facebook.react.devsupport.JSException: Could not get BatchedBridge, make sure your bundle is packaged correctly
                                                              at com.facebook.react.bridge.DefaultNativeModuleCallExceptionHandler.handleException(DefaultNativeModuleCallExceptionHandler.java:24)
                                                              at com.facebook.react.devsupport.DisabledDevSupportManager.handleException(DisabledDevSupportManager.java:158)
                                                              at com.facebook.react.cxxbridge.CatalystInstanceImpl.onNativeException(CatalystInstanceImpl.java:431)
                                                              at com.facebook.react.cxxbridge.CatalystInstanceImpl.access$400(CatalystInstanceImpl.java:51)
                                                              at com.facebook.react.cxxbridge.CatalystInstanceImpl$NativeExceptionHandler.handleException(CatalystInstanceImpl.java:447)
                                                              at com.facebook.react.bridge.queue.MessageQueueThreadHandler.dispatchMessage(MessageQueueThreadHandler.java:33)
                                                              at android.os.Looper.loop(Looper.java:148)
                                                              at com.facebook.react.bridge.queue.MessageQueueThreadImpl$3.run(MessageQueueThreadImpl.java:196)
                                                              at java.lang.Thread.run(Thread.java:818)
                                                           Caused by: com.facebook.react.devsupport.JSException: Could not get BatchedBridge, make sure your bundle is packaged correctly
                                                              at com.facebook.react.bridge.queue.NativeRunnable.run(Native Method)
                                                              at android.os.Handler.handleCallback(Handler.java:739)
                                                              at android.os.Handler.dispatchMessage(Handler.java:95)
                                                              at com.facebook.react.bridge.queue.MessageQueueThreadHandler.dispatchMessage(MessageQueueThreadHandler.java:31)
                                                              at android.os.Looper.loop(Looper.java:148) 
                                                              at com.facebook.react.bridge.queue.MessageQueueThreadImpl$3.run(MessageQueueThreadImpl.java:196) 
                                                              at java.lang.Thread.run(Thread.java:818) 
                                                           Caused by: com.facebook.jni.CppException: Could not get BatchedBridge, make sure your bundle is packaged correctly
                                                              at com.facebook.react.bridge.queue.NativeRunnable.run(Native Method) 
                                                              at android.os.Handler.handleCallback(Handler.java:739) 
                                                              at android.os.Handler.dispatchMessage(Handler.java:95) 
                                                              at com.facebook.react.bridge.queue.MessageQueueThreadHandler.dispatchMessage(MessageQueueThreadHandler.java:31) 
                                                              at android.os.Looper.loop(Looper.java:148) 
                                                              at com.facebook.react.bridge.queue.MessageQueueThreadImpl$3.run(MessageQueueThreadImpl.java:196) 
                                                              at java.lang.Thread.run(Thread.java:818) 

请让我知道如何解决此问题 .