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Flow errors on 0.50.3 #16914
Description
Is this a bug report?
Yes. Although this may not be RN specific -- it's more of a problem with flow in RN.
Have you read the Contributing Guidelines?
Yes
Environment
Environment:
OS: macOS High Sierra 10.13.1
Node: 9.2.0
Yarn: 1.2.1
npm: 5.5.1
Watchman: 4.9.0
Xcode: Xcode 9.1 Build version 9B55
Android Studio: Not Found
Packages: (wanted => installed)
react: 16.0.0 => 16.0.0
react-native: 0.50.3 => 0.50.3
flow-bin: 0.56.0 => 0.56.0
Target Platform: iOS (10.3)
Steps to Reproduce
Run flow in a RN project
Expected Behavior
Should pass flow checks.
Actual Behavior
Flow errors are being reported from both the metro-bundler package and react-native.
Full list of errors can be found here.
They seem to all be Promise related, but I can't quite work out why. This has only been an issue since upgrading RN@0.50.3.
Reproducible Demo
n/a, not a visual bug.
Activity
ollyde commentedon Nov 28, 2017
How can they push a release candidate and not even flow check it.
otusweb commentedon Jan 26, 2018
./node_modules/.bin/flow version
Flow, a static type checker for JavaScript, version 0.64.0
./node_modules/.bin/react-native --version
Scanning folders for symlinks in /Users/otusweb/Projects/reactnative/node_modules (13ms)
0.52.1
my flow.config is a copy of https://github.com/facebook/react-native/blob/master/local-cli/templates/HelloWorld/_flowconfig at SHA 298f3bb
Flow returned 24 errors.
react-native-bot commentedon Feb 24, 2018
Thanks for posting this! It looks like you may not be using the latest version of React Native, v0.53.0, released on January 2018. Can you make sure this issue can still be reproduced in the latest version?
I am going to close this, but please feel free to open a new issue if you are able to confirm that this is still a problem in v0.53.0 or newer.
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