Warning: unknown call: "relay:check"

[KalebPortillo]

• Review the documentation: https://facebook.github.io/react-native
• Search for existing issues: https://github.com/facebook/react-native/issues
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Environment

React Native Environment Info:
System:
OS: macOS 10.14.1
CPU: x64 Intel(R) Core(TM) i7-7700HQ CPU @ 2.80GHz
Memory: 36.70 MB / 16.00 GB
Shell: 5.3 - /bin/zsh
Binaries:
Node: 8.11.2 - /usr/local/bin/node
Yarn: 1.6.0 - ~/.yarn/bin/yarn
npm: 5.6.0 - /usr/local/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:
Build Tools: 23.0.1, 24.0.1, 25.0.1, 25.0.2, 25.0.3, 26.0.0, 26.0.1, 26.0.2, 27.0.3, 28.0.2, 28.0.3
API Levels: 21, 22, 23, 24, 25, 26, 27, 28
IDEs:
Android Studio: 3.2 AI-181.5540.7.32.5056338
Xcode: 10.1/10B61 - /usr/bin/xcodebuild
npmPackages:
react: ^16.6.1 => 16.6.3
react-native: ^0.57.5 => 0.57.5
npmGlobalPackages:
create-react-native-app: 1.0.0
react-native-cli: 2.0.1
react-native: 0.49.2

Description

When I run the app this warning unknown call: "relay:check" is given right on the beginning, in both ios and android emulators

[allmaxgit]

facebook/react-devtools#1233

[leoek]

I am experiencing this issue with react-native-windows as well.

versions in package.json

"react-native": "0.57.2",
"react-native-windows": "0.57.0-rc.0",

react-native-debugger version:

v0.7.21

[gusgard]

Same with 0.57.6

  React Native Environment Info:
    System:
      OS: macOS 10.14.1
      CPU: (4) x64 Intel(R) Core(TM) i5-6360U CPU @ 2.00GHz
      Memory: 469.06 MB / 16.00 GB
      Shell: 5.3 - /bin/zsh
    Binaries:
      Node: 10.12.0 - /usr/local/bin/node
      Yarn: 1.12.3 - /usr/local/bin/yarn
      npm: 6.4.1 - ~/.npm-packages/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: 26, 27, 28
        Build Tools: 26.0.1, 26.0.2, 27.0.3, 28.0.2, 28.0.3
        System Images: android-26 | Google Play Intel x86 Atom, android-27 | Google APIs Intel x86 Atom, android-27 | Google Play Intel x86 Atom, android-28 | Google APIs Intel x86 Atom, android-28 | Google Play Intel x86 Atom
    IDEs:
      Android Studio: 3.2 AI-181.5540.7.32.5056338
      Xcode: 10.1/10B61 - /usr/bin/xcodebuild
    npmPackages:
      react: 16.6.1 => 16.6.1
      react-native: 0.57.6 => 0.57.6

[leoek]

This seems to be related to facebook/react-devtools#1233

[leoek]

You can disable the yellow box for this warning like this:
YellowBox.ignoreWarnings(['unknown call: "relay:check"']);

Probably something which has to be fixed in the devtools.

[psolom]

Same with 0.57.7
My app crashes once I try to reload it when JS debug is enabled (react-native-debugger)

  React Native Environment Info:
    System:
      OS: macOS High Sierra 10.13.6
      CPU: (8) x64 Intel(R) Core(TM) i7-7820HQ CPU @ 2.90GHz
      Memory: 381.89 MB / 16.00 GB
      Shell: 3.2.57 - /bin/bash
    Binaries:
      Node: 9.11.2 - ~/.nvm/versions/node/v9.11.2/bin/node
      npm: 5.6.0 - ~/.nvm/versions/node/v9.11.2/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
    IDEs:
      Xcode: 10.1/10B61 - /usr/bin/xcodebuild
    npmPackages:
      react: 16.6.1 => 16.6.1 
      react-native: ^0.57.7 => 0.57.7 
    npmGlobalPackages:
      react-native-cli: 2.0.1

YellowBox just hiding the warning unknown call: "relay:check", but the problem persists.

react-native-debugger error extra info

Invalidating <RCTCxxBridge: 0x600003b44f00> (parent: <RCTBridge: 0x600002f49490>, executor: (null))

[vovkasm]

@servocoder

1. warning unknown call: "relay:check" related to this issue (just for linking purposes): Warning: unknown call: "relay:check" jhen0409/react-native-debugger#291

2. Crash can be unrelated to above warning. And should be reported to react-native-debugger repo I think. Also I think nothing can be done without additional info. Did the crash a native or javascript, what is stack trace? Did newly generated by react-native init command application crashes? Also reproducible repo on github can be very helpful (not for me... I don't use react-native-debugger so will not try to fix this, sorry).

[alloy]

It looks like the issue reported in the OP has been fixed in a release of the standalone React Native Debugger application
jhen0409/react-native-debugger#291 (comment)