Description
Description
I am seeing app crash reports on iOS with the error:
Got unexpected undefined
The stacktrace shows that it comes from this line in UIManager.measureInWindow:
https://github.com/facebook/react-native/blob/v0.72.6/packages/react-native/Libraries/ReactNative/UIManager.js#L88
This implies that the method getFabricUIManager() returns undefined.
My app has fabric disabled.
Full stack track:
Error Got unexpected undefined
Users/runner/work/together/together/packages/dating-app/node_modules/nullthrows/nullthrows.js:7:23 nullthrows
Users/runner/work/together/together/packages/dating-app/node_modules/react-native/Libraries/ReactNative/UIManager.js:88:40 measureInWindow
Users/runner/work/together/together/packages/dating-app/node_modules/@ui-kitten/components/devsupport/components/measure/measure.component.js:60:48 measureSelf
Users/runner/work/together/together/packages/dating-app/node_modules/@ui-kitten/components/devsupport/components/measure/measure.component.js:50:23 onUIManagerMeasure
(native) apply
Users/runner/work/together/together/packages/dating-app/node_modules/react-native/Libraries/BatchedBridge/MessageQueue.js:474:12 __invokeCallback
Users/runner/work/together/together/packages/dating-app/node_modules/react-native/Libraries/BatchedBridge/MessageQueue.js:124:27 anonymous
Users/runner/work/together/together/packages/dating-app/node_modules/react-native/Libraries/BatchedBridge/MessageQueue.js:368:10 __guard
Users/runner/work/together/together/packages/dating-app/node_modules/react-native/Libraries/BatchedBridge/MessageQueue.js:123:16 invokeCallbackAndReturnFlushedQueue
Interestingly, the main branch looks like it might not be much better. nativeFabricUIManagerProxy seems to be initialized to undefined (see code), however, the code will only define a value for it if it is null. (see code). However, I could be misreading ithis.
React Native Version
0.71.6
Output of npx react-native info
System:
OS: macOS 14.1.1
CPU: (8) arm64 Apple M2
Memory: 194.55 MB / 24.00 GB
Shell:
version: 3.6.1
path: /opt/homebrew/bin/fish
Binaries:
Node:
version: 18.18.2
path: /usr/local/bin/node
Yarn:
version: 3.6.1
path: /usr/local/bin/yarn
npm:
version: 9.8.1
path: /usr/local/bin/npm
Watchman:
version: 2023.10.09.00
path: /opt/homebrew/bin/watchman
Managers:
CocoaPods:
version: 1.13.0
path: /Users/jeremy/.rbenv/shims/pod
SDKs:
iOS SDK:
Platforms:
- DriverKit 23.0
- iOS 17.0
- macOS 14.0
- tvOS 17.0
- watchOS 10.0
Android SDK: Not Found
IDEs:
Android Studio: 2022.3 AI-223.8836.35.2231.10811636
Xcode:
version: 15.0.1/15A507
path: /usr/bin/xcodebuild
Languages:
Java:
version: 16.0.1
path: /usr/bin/javac
Ruby:
version: 3.2.2
path: /Users/jeremy/.rbenv/shims/ruby
npmPackages:
"@react-native-community/cli": Not Found
react:
installed: 18.2.0
wanted: 18.2.0
react-native:
installed: 0.72.6
wanted: 0.72.6
react-native-macos: Not Found
npmGlobalPackages:
"react-native": Not Found
Android:
hermesEnabled: true
newArchEnabled: false
iOS:
hermesEnabled: true
newArchEnabled: false
Steps to reproduce
I have not been able to reproduce it directly and am just going by the stack traces from the crash reports.
Snack, screenshot, or link to a repository
Unfortunately, I have not been able to create a reproduction directly.