Attempt to invoke virtual method 'void com.facebook.react.uimanager.ReactShadowNode.addChildAt(com.facebook.react.uimanager.ReactShadowNode, int)' on a null object reference

[xkrsz]

Environment

  Unrecognized command 'info'
  Run react-native --help to see list of all available commands

• react: 16.0.0-alpha.12
• react-native: ^0.47.1

Description

I haven't found the exact source of this error, but all points to some sort of a race condition, where state changes before native code ends it's execution. This causes an app to crash.

Reproducible Demo

It's hard to create a consistent reproduction of this error, as it pops up randomly.

I'll attempt to post a PR fixing this error, although I'm not 100% sure it doesn't break anything. I welcome any advice or criticism if I'm making any wrong assumptions.

[react-native-bot]

It looks like your issue may be missing some necessary information. Can you run react-native info and edit your issue to include these results under the Environment section?

[xkrsz]

I wish I could, but the command returns Unrecognized command 'info'.

[react-native-bot]

I am closing this issue because it does not contain the necessary environment info, and there has been no followup in a while.

If you found this thread after encountering the same issue in the latest release, please feel free to create a new issue with up-to-date information by clicking here.