React Native Environment Info:
System:
OS: macOS Sierra 10.12.6
CPU: x64 Intel(R) Core(TM) i7-4771 CPU @ 3.50GHz
Memory: 613.02 MB / 32.00 GB
Shell: 3.2.57 - /bin/bash
Binaries:
Node: 9.1.0 - ~/.nvm/versions/node/v9.1.0/bin/node
npm: 5.5.1 - ~/.nvm/versions/node/v9.1.0/bin/npm
Watchman: 4.9.0 - /usr/local/bin/watchman
SDKs:
iOS SDK:
Platforms: iOS 11.2, macOS 10.13, tvOS 11.2, watchOS 4.2
Android SDK:
Build Tools: 23.0.1, 23.0.2, 23.0.3, 26.0.0, 26.0.1, 26.0.2, 26.0.3, 27.0.0, 27.0.1, 27.0.2, 27.0.3
API Levels: 23, 25, 26, 27
IDEs:
Android Studio: 3.1 AI-173.4697961
Xcode: 9.2/9C40b - /usr/bin/xcodebuild
npmPackages:
react: ^16.4.1 => 16.4.2
react-native: ^0.56.0 => 0.56.0
npmGlobalPackages:
create-react-native-app: 1.0.0
react-native-git-upgrade: 0.2.7
After upgrate RN to 0.56, I'm try Toggle Inspector but that below error occur when I click anywhere in screen

It looks like you are using an older version of React Native. Please update to the latest release, v0.57 and verify if the issue still exists.
The ":rewind:Old Version" label will be removed automatically once you edit your original post with the results of running react-native info on a project using the latest release.
Can confirm that upgrading to 0.57.0 of just the react-native package.json dependency did not fix the issue.
I am closing this issue because it does not appear to have been verified on the latest release, 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.
Found out the solution to this problem for us. We had a library, react-metrics, from which we imported a single named export. Turns out the lib goes ahead and enables screen tracking (taps, gestures) metrics for you even if you don't import those other functions. So we did a deep import e.g. import blah from react-metrics/some/sub/folder and this resolved the issue.
Found out the solution to this problem for us. We had a library,
react-metrics, from which we imported a single named export. Turns out the lib goes ahead and enables screen tracking (taps, gestures) metrics for you even if you don't import those other functions. So we did a deep import e.g.import blah from react-metrics/some/sub/folderand this resolved the issue.
could you code here ?
@CxxyLucifer
My solution is here: https://github.com/facebook/react-native/pull/21237/files
@CxxyLucifer
My solution is here: https://github.com/facebook/react-native/pull/21237/files
3Q, nice
I'll land the attached PR to fix this issue.
Most helpful comment
Can confirm that upgrading to 0.57.0 of just the react-native package.json dependency did not fix the issue.