在React Native中导入图形工具包会导致错误500

问题描述

我正在使用最新版本的Expo.我已经由expo init my_project创建了一个项目，并添加了 React Native Chart Kit .这是package.json:

I am using the latest version of Expo. I have created a project by expo init my_project and added the React Native Chart Kit.Here is the package.json:

    {
  "main": "node_modules/expo/AppEntry.js",
  "scripts": {
    "start": "expo start",
    "android": "expo start --android",
    "ios": "expo start --ios",
    "web": "expo start --web",
    "eject": "expo eject"
  },
  "dependencies": {
    "expo": "^35.0.0",
    "react": "16.8.3",
    "react-dom": "16.8.3",
    "react-native": "https://github.com/expo/react-native/archive/sdk-35.0.0.tar.gz",
    "react-native-chart-kit": "^3.6.1",
    "react-native-web": "^0.11.7"
  },
  "devDependencies": {
    "babel-preset-expo": "^7.0.0"
  },
  "private": true
}

当我导入以下内容时，它给我错误:开发服务器返回了响应错误代码:500":

When I import the following it gives me the error: "The development server returned response error code: 500":

  import {
  LineChart,
  BarChart,
  PieChart,
  ProgressChart,
  ContributionGraph,
  StackedBarChart
} from "react-native-chart-kit";

即使按此[page] [2]所述通过Expo可以访问此模块，为什么仍会发生此错误?

Why this error happens even though this module is accessible through the Expo as it stated in this [page][2]?

[2]: https://forums.expo.io /t/any-graph-library/1674/7

推荐答案

在大多数情况下，此错误与您的node_modules有关，请尝试以下操作:

Most cases this error is related to your node_modules, try the following:

1. 停止您的Expo应用程序服务器
2. 删除您的node_modules目录和package-lock.json
3. 运行npm install或yarn install
4. 运行npm install --save react-native-svg
5. 通过运行expo start -c
来启动您的应用程序

1. Stop your Expo application server
2. Delete your node_modules directory and package-lock.json
3. Run npm install or yarn install
4. Run npm install --save react-native-svg
5. Start your application by running expo start -c

希望这会有所帮助！

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