React Native for Android - 使用 ./gradlew assembleRelease 会产生“Cannot find module 'babel-preset-react-app'”错误

Question

-1) 按照官方说明生成发布APK。 a link

-2) 在下面运行此命令。

    $ cd android
    $ ./gradlew assembleRelease

-3) 结果：我收到以下错误消息。

index.js: 找不到模块 'babel-preset-react-app'

错误：找不到模块'babel-preset-react-app'

我正在尝试使用 React Native 为 Android 应用创建发布版本。 我已经搜索了包括以下内容的潜在解决方案。但我还没有找到任何适合我的东西。 Module build failed (from ./node_modules/babel-loader/lib/index.js): Error: Cannot find module 'babel-preset-react'

[package.json] 第 9 到 41 行

"dependencies": {
"mobx": "^5.9.0",
"mobx-react": "^5.4.3",
"react": "16.6.3",
"react-dom": "^16.7.0",
"react-native": "0.58.3",
"react-native-gesture-handler": "^1.0.15",
"react-native-image-pan-zoom": "^2.1.11",
"react-navigation": "^3.1.2"},

"devDependencies": {
"@babel/plugin-proposal-decorators": "^7.3.0",
"babel-core": "7.0.0-bridge.0",
"babel-jest": "24.0.0",
"jest": "24.0.0",
"metro-react-native-babel-preset": "0.51.1",
"react-test-renderer": "16.6.3"},
"jest": {
"preset": "react-native"},

"babel": {
"presets": [
  "react-app"
],


"plugins": [
  [
    "@babel/plugin-proposal-decorators",
    {
      "legacy": true
    }
  ]
]

[index.js]

import {AppRegistry} from 'react-native';
import App from './App';
import {name as appName} from './app.json';

[app.js]

import React, {Component, PropTypes} from 'react';
import { Platform, StyleSheet, Text, View, Image, Dimensions, Button, TouchableHighlight, WebView } from 'react-native';
import { createStackNavigator, createAppContainer, StackActions, NavigationActions, withNavigation } from "react-navigation";

预期结果：终端将完成本官方指南中描述的过程，并在此文件夹路径下生成一个 apk 文件 android/app/build/outputs/apk/release/app-release.apk

React Native 官方指南： https://facebook.github.io/react-native/docs/signed-apk-android

实际输出： 我收到以下错误消息。

index.js: 找不到模块 'babel-preset-react-app'

错误：找不到模块'babel-preset-react-app'

任何建议将不胜感激。

Answer 1

我找到了解决方案。我会回答我自己的问题... 我从 package.json 中删除了以下行。 而且我现在不再看到此错误消息。

"plugins": [
  [
    "@babel/plugin-proposal-decorators",
    {
      "legacy": true
    }
  ]
]