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首页 > 解决方案 > mqt_native_modules react.common.JavascriptException: TypeError: undefined is not an object (评估 'w.default.chapterContent[c].content')

android - mqt_native_modules react.common.JavascriptException: TypeError: undefined is not an object (评估 'w.default.chapterContent[c].content')

问题描述

当我单击新视图时，React Native 应用程序崩溃。但是，堆栈跟踪显示没有导致我的代码，所以我不知道如何调试。有人可以指出我正确的方法，或者让我知道我是否应该向 React Native 报告错误？

错误和完整的堆栈跟踪：

FATAL EXCEPTION: mqt_native_modules
04-21 17:47:34.000  6115  6143 E AndroidRuntime: Process: com.myappname, PID: 6115
04-21 17:47:34.000  6115  6143 E AndroidRuntime: com.facebook.react.common.JavascriptException: TypeError: TypeError: undefined is not an object (evaluating 'w.default.chapterContent[c].content')
04-21 17:47:34.000  6115  6143 E AndroidRuntime: 
04-21 17:47:34.000  6115  6143 E AndroidRuntime: This error is located at:
04-21 17:47:34.000  6115  6143 E AndroidRuntime:     in c
04-21 17:47:34.000  6115  6143 E AndroidRuntime:     in AndroidHorizontalScrollContentView
04-21 17:47:34.000  6115  6143 E AndroidRuntime:     in AndroidHorizontalScrollView
04-21 17:47:34.000  6115  6143 E AndroidRuntime:     in E
04-21 17:47:34.000  6115  6143 E AndroidRuntime:     in z
04-21 17:47:34.000  6115  6143 E AndroidRuntime:     in _
04-21 17:47:34.000  6115  6143 E AndroidRuntime:     in u
04-21 17:47:34.000  6115  6143 E AndroidRuntime:     in o
04-21 17:47:34.000  6115  6143 E AndroidRuntime:     in RCTView
04-21 17:47:34.000  6115  6143 E AndroidRuntime:     in RCTView
04-21 17:47:34.000  6115  6143 E AndroidRuntime:     in RCTScrollView
04-21 17:47:34.000  6115  6143 E AndroidRuntime:     in E
04-21 17:47:34.000  6115  6143 E AndroidRuntime:     in n
04-21 17:47:34.000  6115  6143 E AndroidRuntime:     in l
04-21 17:47:34.000  6115  6143 E AndroidRuntime:     in s
04-21 17:47:34.000  6115  6143 E AndroidRuntime:     in RCTView
04-21 17:47:34.000  6115  6143 E AndroidRuntime:     in RCTView
04-21 17:47:34.000  6115  6143 E AndroidRuntime:     in RCTView
04-21 17:47:34.000  6115  6143 E AndroidRuntime:     in u
04-21 17:47:34.000  6115  6143 E AndroidRuntime:     in C
04-21 17:47:34.000  6115  6143 E AndroidRuntime:     in n
04-21 17:47:34.000  6115  6143 E AndroidRuntime:     in E
04-21 17:47:34.000  6115  6143 E AndroidRuntime:     in RCTView
04-21 17:47:34.000  6115  6143 E AndroidRuntime:     in n
04-21 17:47:34.000  6115  6143 E AndroidRuntime:     in RCTView
04-21 17:47:34.000  6115  6143 E AndroidRuntime:     in H
04-21 17:47:34.000  6115  6143 E AndroidRuntime:     in L
04-21 17:47:34.000  6115  6143 E AndroidRuntime:     in RCTView
04-21 17:47:34.000  6115  6143 E AndroidRuntime:     in h
04-21 17:47:34.000  6115  6143 E AndroidRuntime:     in v
04-21 17:47:34.000  6115  6143 E AndroidRuntime:     in h
04-21 17:47:34.000  6115  6143 E AndroidRuntime:     in _
04-21 17:47:34.000  6115  6143 E AndroidRuntime:     in N
04-21 17:47:34.000  6115  6143 E AndroidRuntime:     in n
04-21 17:47:34.000  6115  6143 E AndroidRuntime:     in D
04-21 17:47:34.000  6115  6143 E AndroidRuntime:     in h
04-21 17:47:34.000  6115  6143 E AndroidRuntime:     in RCTView
04-21 17:47:34.000  6115  6143 E AndroidRuntime:     in RCTView
04-21 17:47:34.000  6115  6143 E AndroidRuntime:     in c
04-21 17:47:34.000  6115  6143 E AndroidRuntime: 
04-21 17:47:34.000  6115  6143 E AndroidRuntime: This error is located at:
04-21 17:47:34.000  6115  6143 E AndroidRuntime:     in N
04-21 17:47:34.000  6115  6143 E AndroidRuntime:     in n
04-21 17:47:34.000  6115  6143 E AndroidRuntime:     in D
04-21 17:47:34.000  6115  6143 E AndroidRuntime:     in h
04-21 17:47:34.000  6115  6143 E AndroidRuntime:     in RCTView
04-21 17:47:34.000  6115  6143 E AndroidRuntime:     in RCTView
04-21 17:47:34.000  6115  6143 E AndroidRuntime:     in c, stack:
04-21 17:47:34.000  6115  6143 E AndroidRuntime: renderItem@628:716
04-21 17:47:34.000  6115  6143 E AndroidRuntime: value@632:19530
04-21 17:47:34.000  6115  6143 E AndroidRuntime: value@247:22532
04-21 17:47:34.000  6115  6143 E AndroidRuntime: Cr@90:49183
04-21 17:47:34.000  6115  6143 E AndroidRuntime: Ji@90:70549
04-21 17:47:34.000  6115  6143 E AndroidRuntime: Ki@90:71041
04-21 17:47:34.000  6115  6143 E AndroidRuntime: Ua@90:77455
04-21 17:47:34.000  6115  6143 E AndroidRuntime: Na@90:76778
04-21 17:47:34.000  6115  6143 E AndroidRuntime: Ie@90:84181
04-21 17:47:34.000  6115  6143 E AndroidRuntime: Me@90:13520
04-21 17:47:34.000  6115  6143 E AndroidRuntime: Oe@90:13693
04-21 17:47:34.000  6115  6143 E AndroidRuntime: receiveTouches@90:14462
04-21 17:47:34.000  6115  6143 E AndroidRuntime: value@28:3311
04-21 17:47:34.000  6115  6143 E AndroidRuntime: <unknown>@28:822
04-21 17:47:34.000  6115  6143 E AndroidRuntime: value@28:2565
04-21 17:47:34.000  6115  6143 E AndroidRuntime: value@28:794
04-21 17:47:34.000  6115  6143 E AndroidRuntime: 
04-21 17:47:34.000  6115  6143 E AndroidRuntime:    at com.facebook.react.modules.core.ExceptionsManagerModule.showOrThrowError(ExceptionsManagerModule.java:54)
04-21 17:47:34.000  6115  6143 E AndroidRuntime:    at com.facebook.react.modules.core.ExceptionsManagerModule.reportFatalException(ExceptionsManagerModule.java:38)
04-21 17:47:34.000  6115  6143 E AndroidRuntime:    at java.lang.reflect.Method.invoke(Native Method)
04-21 17:47:34.000  6115  6143 E AndroidRuntime:    at com.facebook.react.bridge.JavaMethodWrapper.invoke(JavaMethodWrapper.java:372)
04-21 17:47:34.000  6115  6143 E AndroidRuntime:    at com.facebook.react.bridge.JavaModuleWrapper.invoke(JavaModuleWrapper.java:158)
04-21 17:47:34.000  6115  6143 E AndroidRuntime:    at com.facebook.react.bridge.queue.NativeRunnable.run(Native Method)
04-21 17:47:34.000  6115  6143 E AndroidRuntime:    at android.os.Handler.handleCallback(Handler.java:873)
04-21 17:47:34.000  6115  6143 E AndroidRuntime:    at android.os.Handler.dispatchMessage(Handler.java:99)
04-21 17:47:34.000  6115  6143 E AndroidRuntime:    at com.facebook.react.bridge.queue.MessageQueueThreadHandler.dispatchMessage(MessageQueueThreadHandler.java:29)
04-21 17:47:34.000  6115  6143 E AndroidRuntime:    at android.os.Looper.loop(Looper.java:193)
04-21 17:47:34.000  6115  6143 E AndroidRuntime:    at com.facebook.react.bridge.queue.MessageQueueThreadImpl$4.run(MessageQueueThreadImpl.java:232)
04-21 17:47:34.000  6115  6143 E AndroidRuntime:    at java.lang.Thread.run(Thread.java:764)

我尝试过的： 1. 我用谷歌搜索了 mqt_native_modules，发现很多人认为问题出在 React/React Native 上。有没有办法找出我的 React Native 是否也有问题，或者我应该只提交一个错误？2. 我搜索了我的存储库，w.default.chapterContent[c].content但最接近的片段是const { content } = ContentService.chapterContent[chapterId];和this.chapterContent[doc.id]

这是其中一个组件：

import { StyleSheet, Text, ScrollView } from 'react-native';
import ContentService from '../services/ContentService';

export default class Conclusion extends React.Component {
  constructor() {
    super();
    const { chapterId } = ContentService.chapterDataMap['conclusion'];
    const { content } = ContentService.chapterContent[chapterId];
    this.state = { content };
  }
  render() {
    const { content } = this.state;

    return (
      <ScrollView style={styles.scrollView}>
        <Text style={styles.module}>{content}</Text>
      </ScrollView>
    );
  }
}

该服务适用于 iOS。

标签： androidreactjsreact-native

解决方案

已解决：这确实不是代码问题。我正在与一个团队合作，同时拆分 Android 和 iOS 的职责。iOS 端已经输入了必要的数据，但我们使用的是不同的 Firebase 帐户。

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