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Can't find variable: Promise on react-native 0.56.0-rc2 release build

See original GitHub issue

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

Environment

Run react-native info in your terminal and paste its contents here.

Scanning folders for symlinks in /Users/xxx/node_modules (16ms)

React Native Environment Info: System: OS: macOS High Sierra 10.13.4 CPU: x64 Intel® Core™ i7-6920HQ CPU @ 2.90GHz Memory: 25.53 MB / 16.00 GB Shell: 3.2.57 - /bin/bash Binaries: Node: 8.11.1 - ~/.nvm/versions/node/v8.11.1/bin/node Yarn: yarn install v0.22.0 [1/4] Resolving packages… [2/4] Fetching packages… [3/4] Linking dependencies… [4/4] Building fresh packages… success Saved lockfile. Done in 31.50s. - /usr/local/bin/yarn npm: 5.6.0 - ~/.nvm/versions/node/v8.11.1/bin/npm Watchman: 4.7.0 - /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, 25.0.3, 26.0.1, 26.0.2, 27.0.1, 27.0.2, 27.0.3 API Levels: 23, 24, 25, 26, 27 IDEs: Xcode: 9.4.1/9F2000 - /usr/bin/xcodebuild npmPackages: react: 16.3.2 => 16.3.2 react-native: 0.56.0-rc.2 => 0.56.0-rc.2

Description

Ios App crash on release configuration setup (react-native run-ios --configuration Release)

Jun 19 14:39:49 silver xxx[10026]: *** Terminating app due to uncaught exception 'RCTFatalException: Unhandled JS Exception: Can't find variable: Promise (/Users/xxxx/Library/Developer/CoreSimulator/Devices/68A9BE18-20F4-4E67-A4F5-0BE26E9117A0/data/Containers/Bundle/Application/D4F542F8-E577-4260-96B1-65C9AD91F2D4/xxxx/main.jsbundle:820)', reason: 'Unhandled JS Exception: Can't find variable: Promise (/Users/xxxx/Librar...'

react-native run-ios works well

Reproducible Demo

react-native run-ios --configuration Release

Issue Analytics

State:
Created 5 years ago
Reactions:6
Comments:5 (1 by maintainers)

Top GitHub Comments

3reactions

viniychukcommented, Jun 20, 2018

Got the same issue in react-native 0.56.0-rc2, but my error is with “fetch” variable. Update to the node 10.4.1. didn’t help. Debug configuration works fine, but Release doesn’t.

2reactions

eshikeryacommented, Jun 20, 2018

same issue but with message Unhandled JS Exception: Can't find variable: regeneratorRuntime

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