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我正在尝试React-Native使用lerna. 当我尝试运行时，jest我面临以下错误。

   The name `setupDevtools` was looked up in the Haste module map. It cannot be resolved, because there exists several different files, or packages, that provide a module for that particular name and platform. The platform is generic (no extension). You must delete or blacklist files until there remains only one of these:

      * `/Users/kevin.amiranoff/project/node_modules/react-native/Libraries/Core/Devtools/setupDevtools.js` (module)
      * `/Users/kevin.amiranoff/project/packages/App/node_modules/react-native/Libraries/Core/Devtools/setupDevtools.js` (module)
      * `/Users/kevin.amiranoff/project/packages/App-exceptions/node_modules/react-native/Libraries/Core/Devtools/setupDevtools.js` (module)
      * `/Users/kevin.amiranoff/project/packages/App-signin/node_modules/react-native/Libraries/Core/Devtools/setupDevtools.js` (module)
      * `/Users/kevin.amiranoff/project/packages/App-ui/node_modules/react-native/Libraries/Core/Devtools/setupDevtools.js` (module)
      * `/Users/kevin.amiranoff/project/packages/App-utils/node_modules/react-native/Libraries/Core/Devtools/setupDevtools.js` (module)

这是jest我根目录中的配置package.json

"jest": {
    "preset": "react-native",
    "globals": {
      "__DEV__": true
    },
    "testRegex": "packages/(.*)/src/(.*)/__tests__/(.*).js?$",
    "transformIgnorePatterns": [
      "packages/(.*)/node_modules/?!(react|react-native)"
         ],
    "testEnvironment": "node"
  }

谁能向我解释我必须忽略什么以及如何忽略？

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1 回答 1

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您应该使用modulePathIgnorePatterns忽略某些目录。确保只有您真正想要使用的那个不在此忽略列表中。

文档链接： https ://facebook.github.io/jest/docs/en/configuration.html#modulepathignorepatterns-array-string

于 2017-10-10T14:19:25.873 回答