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Cannot find module 'warnOnce' from 'react-native-implementation.js'

See original GitHub issue

🐛 Bug Report

When requiring react-native in node context (e.g. jest) module warnOnce cannot be found. ● Test suite failed to run

Cannot find module 'warnOnce' from 'react-native-implementation.js'

To Reproduce

TestFile.js

import { PixelRatio } from 'react-native'

export default class TestFile {
}

TestFile.test.js

import TestFile from './TestFile'

test('test', () => {
  ...
})

Expected Behavior

warnOnce should be found and loaded just like invariant.

Workaround

As a workaround I’m mocking react-native dependency with jest.doMock('react-native', () => reactNativeMock))

Environment

info
  React Native Environment Info:
    System:
      OS: macOS 10.14.3
      CPU: (8) x64 Intel(R) Core(TM) i7-4850HQ CPU @ 2.30GHz
      Memory: 3.06 GB / 16.00 GB
      Shell: 3.2.57 - /bin/bash
    Binaries:
      Node: 8.10.0 - ~/.nvm/versions/node/v8.10.0/bin/node
      Yarn: 1.13.0 - ~/.nvm/versions/node/v8.10.0/bin/yarn
      npm: 6.8.0 - ~/.nvm/versions/node/v8.10.0/bin/npm
      Watchman: 4.9.0 - /usr/local/bin/watchman
    SDKs:
      iOS SDK:
        Platforms: iOS 12.1, macOS 10.14, tvOS 12.1, watchOS 5.1
      Android SDK:
        API Levels: 23, 25, 26, 27, 28
        Build Tools: 21.1.2, 23.0.1, 25.0.0, 25.0.2, 25.0.3, 26.0.1, 26.0.2, 26.0.3, 27.0.3, 28.0.3
        System Images: android-19 | Google APIs Intel x86 Atom, android-25 | Google APIs Intel x86 Atom_64, android-27 | Google APIs Intel x86 Atom
    IDEs:
      Android Studio: 3.3 AI-182.5107.16.33.5199772
      Xcode: 10.1/10B61 - /usr/bin/xcodebuild
    npmPackages:
      react: 16.8.3 => 16.8.3
      react-native: 0.59.1 => 0.59.0
    npmGlobalPackages:
      create-react-native-app: 2.0.2
      react-native-cli: 2.0.1
      react-native-git-upgrade: 0.2.7
      react-native-rename: 2.4.0

Issue Analytics

State:
Created 5 years ago
Reactions:37
Comments:77 (3 by maintainers)

Top GitHub Comments

57reactions

AlexKLWScommented, Apr 23, 2019

I have resolved this issue, and for me the problem was with .bablerc. For some reason I had "presets": ["module:react-native", "react-native"] instead of "presets": ["module:metro-react-native-babel-preset"]

34reactions

amunimcommented, Apr 17, 2019

Have someone found a fix yet? I am stuck on this

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