React native:'require'未定义

我正在使用干净的项目,我不能在我的代码的任何部分使用require,例如在Image中:

或者在这里使用react-native-router-flux插件的任何其他部分,我想覆盖后退按钮图像但我无法更改它因为'require'没有定义.

这是我的package.json

  {
  "name": "CleanProject",
  "version": "0.0.1",
  "private": true,
  "scripts": {
    "start": "node node_modules/react-native/local-cli/cli.js start",
    "test": "jest"
  },
  "dependencies": {
    "react": "15.4.2",
    "react-native": "0.40.0",
    "react-native-router-flux": "^3.37.0"
  },
  "devDependencies": {
    "babel-eslint": "^7.1.1",
    "babel-jest": "18.0.0",
    "babel-preset-react-native": "1.9.1",
    "eslint": "^3.12.0",
    "eslint-plugin-react": "^6.8.0",
    "jest": "18.1.0",
    "react-test-renderer": "~15.4.0-rc.4"
  },
  "jest": {
    "preset": "react-native"
  }
}    

你有什么主意吗？