react-native - 世博会 : cannot find a module LogReporter

Question

我创建了一个 React Native 项目，我试图在 Expo XDE 中打开该项目。它引发以下错误:

Cannot find module ...\node_modules\expo\tools\LogReporter

首先，我通过克隆 KitchenSink 项目创建了一个 React Native 项目。
关联:

NativeBase-KitchenSink

当我通过在项目根目录中发出一系列命令来启动项目时:
npm install然后 expo start
我看到 app.json 也不正确，如下所示:

{
  "name": "NativebaseKitchenSink",
  "displayName": "NativebaseKitchenSink"
}

发出后 expo start react-native 报告了 app.json在当前目录中找不到。

[17:05:08] Starting project at D:\Projects\ReactNativeProjects\AwesomeProject [17:05:10] Error: Missing app.json. See https://docs.expo.io/ [17:05:10] Couldn't start project. Please fix the errors and restart the project. [17:05:10] Error: Couldn't start project. Please fix the errors and restart the project. at C:\xdl@51.4.0\src\Project.js:1565:11 at Generator.next () at step (C:\Users\hp\AppData\Roaming\npm\node_modules\expo-cli\node_modules\xdl\build\Project.js:2033:191) at C:\Users\hp\AppData\Roaming\npm\node_modules\expo-cli\node_modules\xdl\build\Project.js:2033:361 at process._tickCallback (internal/process/next_tick.js:68:7)

我将 app.json 更改为:

{
  "expo": {
    "name": "AwesomeProject",
    "description": "A Kitchen Sink project.",
    "slug": "AwesomeProject",
    "privacy": "public",
    "sdkVersion": "30.0.0",
    "platforms": [
      "ios",
      "android"
    ],
    "ios": {
      "supportsTablet": true
    },
    "android": {
      "package": "com.abhsax.first"
    },
    "version": "1.0.0",
    "orientation": "portrait",
    "icon": "./assets/logo.png",
    "splash": {
      "image": "./assets/splashscreen.png",
      "resizeMode": "contain",
      "backgroundColor": "#ffffff"
    },
    "updates": {
      "fallbackToCacheTimeout": 0
    },
    "assetBundlePatterns": [
      "**/*"
    ]
  }
}

当我发布 npm install 时，项目中有一些更新再次。然后我发出:

expo start

这个错误来了:

(node:2044) UnhandledPromiseRejectionWarning: Error: Cannot find module 'D:\Projects\ReactNativeProjects\AwesomeProject\node_modules\expo\tools\LogReporter'

为什么我会收到此错误，我该如何解决？

Answer 1

检查您的 package.json如果它包含所有需要的依赖项并运行 npm install在项目的主目录中

如果缺少包，您可以添加它

npm install <package_name> --save

如果您正在使用 yarn 跑:

yarn add expo