意外删除的node_modules文件夹

Question

I accidentally deleted my node_modules folder. I know the way to get it back is just to run npm install but this won't work in my case. It's saying something's wrong in my JSON file. I'm getting this error in Terminal .

Here's my Package.js file:

{
  "name": "App",
  "version": "0.0.1",
  "private": true,
  "scripts": {
    "start": "node node_modules/react-native/local-cli/cli.js start",
    "test": "jest"
  },
  "dependencies": {
    "aws-sdk": "git://github.com/aws/aws-sdk-js.git#react-native",
    "react": "^16.0.0-alpha.12",
    "react-native": "^0.45.1",
    "react-native-aws-signature": "0.0.9",
    "react-native-dropdown-menu": "^1.1.0",
    "react-native-dynamodb": "0.0.5",
    "react-redux": "^5.0.5",
    "redux": "^3.7.1"
  },
  "devDependencies": {
    "babel-jest": "20.0.3",
    "babel-preset-react-native": "2.0.0",
    "jest": "20.0.4",
    "react-test-renderer": "16.0.0-alpha.12"
  },
  "jest": {
    "preset": "react-native"
  },
}

Error:

Failed to parse package.json data.
npm ERR! package.json must be actual JSON, not just JavaScript.
npm ERR! 
npm ERR! This is not a bug in npm.
npm ERR! Tell the package author to fix their package.json file. JSON.parse

npm ERR! Please include the following file with any support request:

Answer 1

There is an error on line 27, sufficient , here is a valid json

{
    "name": "TorusTApp",
    "version": "0.0.1",
    "private": true,
    "scripts": {
        "start": "node node_modules/react-native/local-cli/cli.js start",
        "test": "jest"
    },
    "dependencies": {
        "aws-sdk": "git://github.com/aws/aws-sdk-js.git#react-native",
        "react": "^16.0.0-alpha.12",
        "react-native": "^0.45.1",
        "react-native-aws-signature": "0.0.9",
        "react-native-dropdown-menu": "^1.1.0",
        "react-native-dynamodb": "0.0.5",
        "react-redux": "^5.0.5",
        "redux": "^3.7.1"
    },
    "devDependencies": {
        "babel-jest": "20.0.3",
        "babel-preset-react-native": "2.0.0",
        "jest": "20.0.4",
        "react-test-renderer": "16.0.0-alpha.12"
    },
    "jest": {
        "preset": "react-native"
    }
}

Answer 2

我相信这是因为package.js文件中最后一行的末尾有一个逗号。

Answer 3

run this json through a json validator online. eg https://jsonlint.com/

The previous answer was right but this should help you in the future.