React-native: React Native ERROR : "Cannot set property 'volume' of null"

[meazou75]

• [X] I have reviewed the documentation
• [X] I have searched existing issues
• [X] I am using the latest React Native version

When i try to run my app simulator with react-native run-ios on Osx, the application start well but my debugger at http://localhost:8081/debugger-ui/ doesn't show console.log and print this error :

(index):92 Uncaught TypeError: Cannot set property 'volume' of null
at Object.render ((index):92)
at Object.setState ((index):46)
at WebSocket.ws.onopen ((index):150)

Environment

Environment:
OS: macOS High Sierra 10.13.1
Node: 6.11.3
Yarn: Not Found
npm: 3.10.10
Watchman: Not Found
Xcode: Xcode 9.2 Build version 9C40b
Android Studio: 3.0 AI-171.4443003

Packages: (wanted => installed)
react: 16.3.1 => 16.3.1
react-native: 0.55.3 => 0.55.3

Steps to Reproduce

I used the basic app created by React native init

Expected Behavior

Show a console.log in console

Actual Behavior

Show nothing from console.log but show :

(index):92 Uncaught TypeError: Cannot set property 'volume' of null
at Object.render ((index):92)
at Object.setState ((index):46)
at WebSocket.ws.onopen ((index):150)

[meazou75]

Solve ! CMD + D and solver JS Remotly

https://facebook.github.io/react-native/docs/debugging.html

[HappyerKing]

I'm having the same issue with react-native [email protected]

[klapperkopp]

Same here when I activate remote debugging. It sometimes comes up and sometimes not and I couldn't figure out why yet... Sometimes, instead of the above error message it shows "Another debugger is already connected", but none is running.

Node: 9.11.1
NPM: 5.6.0
React-Native: 0.53.0
React-Native-Cli: 2.0.1
XCode: Version 9.3 (9E145)

[westandy]

In your app's ios folder, look for a file called <yourAppName>.xcscheme. There's a property called runnableDebuggingMode = "0" that I set to "1". And all worked as the directions say.

[ReneCode]

@westandy That works for me - Thank you.

[mohini14]

https://github.com/facebook/react-native/issues/19022#issuecomment-398563887
this is really useful

[likern]

What about fixing this for Android? Will this comment work?

[MikeB2012]

@likern: my experience has been that is also works on Android ie. make the correction in the ios/ and the error disappeared.

[c-moss-talk]

I had this error log while I had two packagers running.

[stale[bot]]

Hey there, it looks like there has been no activity on this issue recently. Has the issue been fixed, or does it still require the community's attention? This issue may be closed if no further activity occurs. You may also label this issue as "For Discussion" or "Good first issue" and I will leave it open. Thank you for your contributions.

[stale[bot]]

Closing this issue after a prolonged period of inactivity. If this issue is still present in the latest release, please feel free to create a new issue with up-to-date information.