Plain new project shows Unhandled JS Exception: _typeof3 is not a function

[Val0429]

• [v] Review the documentation: https://facebook.github.io/react-native
• [v] Search for existing issues: https://github.com/facebook/react-native/issues
• [v] Use the latest React Native release: https://github.com/facebook/react-native/releases

Environment

React Native Environment Info:
System:
OS: macOS High Sierra 10.13.2
CPU: x64 Intel(R) Core(TM) i7-3720QM CPU @ 2.60GHz
Memory: 122.16 MB / 8.00 GB
Shell: 3.2.57 - /bin/bash
Binaries:
Node: 8.12.0 - ~/.nvm/versions/node/v8.12.0/bin/node
Yarn: 1.3.2 - /usr/local/bin/yarn
npm: 6.4.1 - ~/.nvm/versions/node/v8.12.0/bin/npm
Watchman: 4.9.0 - /usr/local/bin/watchman
SDKs:
iOS SDK:
Platforms: iOS 11.4, macOS 10.13, tvOS 11.4, watchOS 4.3
Android SDK:
Build Tools: 23.0.1, 25.0.0, 25.0.2, 26.0.1, 26.0.2, 27.0.3
API Levels: 23, 24, 25, 26, 27
IDEs:
Android Studio: 2.3 AI-162.4069837
Xcode: 9.4.1/9F2000 - /usr/bin/xcodebuild
npmPackages:
react: 16.6.0-alpha.8af6728 => 16.6.0-alpha.8af6728
react-native: 0.57.4 => 0.57.4
npmGlobalPackages:
react-native-cli: 2.0.1

Description

I followed instruction steps to start a new project with react-native v0.57.4.

With everything installed correctly (I've recheck a few times), I create native project with react-native init MyProject. but then I got this error after build iOS project:

Unhandled JS Exception: _typeof3 is not a function (In '_typeof3(typeof Symbol === "function" ? Symbol.iterator : "@@iterator")', '_typeof3' is an instance of Object)

[react-native-bot]

Can you run react-native info and edit your issue to include these results under the Environment section?

If you believe this information is irrelevant to the reported issue, you may write [skip envinfo] under Environment to let us know.

[Val0429]

Can you run react-native info and edit your issue to include these results under the Environment section?

If you believe this information is irrelevant to the reported issue, you may write [skip envinfo] under Environment to let us know.

I've re-paste Environment part again, including header React Native Environment Info:.

[Val0429]

Tested with previous version

react-native init MyProject --version 0.56.1
no such problem.

[harrisrobin]

I'm also running into this. @Val0429 did you end up figuring it out?

[Val0429]

@harrisrobin I reinstall babels to version 7,

  "devDependencies": {
    "@babel/core": "7.0.0",
    "@babel/plugin-proposal-class-properties": "7.0.0",
    "@babel/plugin-proposal-decorators": "7.0.0",
    "@babel/plugin-proposal-object-rest-spread": "7.0.0",
    "@babel/preset-typescript": "7.0.0",
    "@babel/runtime": "7.0.0",
   }

please let me know if that works for you.

[GuillaumeRZ]

I have the exact same error... Adding previous dependencies does not resolved the issue...

[Salakar]

Hello there 👋 this issue doesn't have a repro (which means, a react-native init-ed project with the minimal changes that leads to creating the same issue you are reporting). Unfortunately, I have no way of helping you in a meaningful way without it – there is no easy way for me to recreate the situation and check that the issue reported is still there when changing the code.

Because of this, we are going to close this issue - but if a repro is shared, we are happy to reopen it 🤗

[hitesh3001]

I am facing the same issue. I am using create react native app, and when I run this with expo on web, everything runs fine. But when I run it on android mobile by scanning the bar code, I run into this issue. Can anybody please help me resolve this?