Grouping
See how Measure groups similar errors into a single issue.
Similar errors are grouped into a single issue. Each group shows its percentage contribution so you can see at a glance what to fix first.
Grouping rules depend on the platform.
Android
Errors are grouped by the exception type and the top frame of the stack trace.
- Exception type:
java.lang.NullPointerException - Top frame:
onCreateinMainActivity.kt
java.lang.NullPointerException: Attempt to invoke virtual method 'void com.example.app.MainActivity.onCreate(android.os.Bundle)' on a null object reference
at com.example.app.MainActivity.onCreate(MainActivity.kt:10)
at android.app.Activity.performCreate(Activity.java:8000)
...iOS
Errors are grouped by the signal and the first stack frame that belongs to your app. Operating-system and framework frames at the top of the stack (like CoreFoundation and libobjc) are skipped, since the code you can fix is in your own binary.
- Signal:
SIGABRT - First frame from your app:
-viewDidLoadinMainViewController.m
Exception Type: EXC_CRASH (SIGABRT)
Exception Codes: 0x0000000000000000, 0x0000000000000000
Crashed Thread: 0
Application Specific Information:
*** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[MainViewController viewDidLoad]: unrecognized selector sent to instance 0x600000e2c0c0'
First Throw Call Stack:
(
0 CoreFoundation 0x000000010a2f3b6c __exceptionPreprocess + 220
1 libobjc.A.dylib 0x0000000109d8e5e1 objc_exception_throw + 48
2 MainViewController.m 0x000000010a2f3b6c -[MainViewController viewDidLoad] + 0
...
)Flutter
Errors are grouped by the exception type and the top frame of the stack trace.
- Exception type:
FlutterError - Top frame:
_incrementCounterinmain.dart
FlutterError (setState() called after dispose(): _MyHomePageState#12345(ticker: _TickerModeEnabled))
at _MyHomePageState._incrementCounter (package:my_app/main.dart:42:9)
at _MyHomePageState.build (package:my_app/main.dart:30:5)
at StatelessElement.build (package:flutter/src/widgets/framework.dart:4620:27)
...React Native
Errors are grouped by the error type, its message, and the top frame of the stack trace.
- Error type:
TypeError - Message:
undefined is not an object (evaluating 'user.profile.name') - Top frame:
renderHeaderinProfileScreen.js
TypeError: undefined is not an object (evaluating 'user.profile.name')
at renderHeader (ProfileScreen.js:42:18)
at ProfileScreen (ProfileScreen.js:15:10)
...Kotlin Multiplatform
Errors follow the host platform's grouping: Android rules on the Android target and iOS rules on the iOS target, including crashes in shared Kotlin code.
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