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증상Can't load Kernel binary: Invalid kernel binary format version.fvm 2.4.1 doesn't support Dart 2.16.2. 해결flutter pub global activate fvm 참조https://github.com/leoafarias/fvm/issues/100 [BUG] Can't load Kernel binary: Invalid kernel binary format version. · Issue #100 · leoafarias/fvmDescribe the bug I'm getting the following message when running fvm Can't load Kernel binary: Invalid kernel binar..

## change_app_package_name: ^1.1.0 페키지 이용 flutter pub run change_app_package_name:main [ 페키지 명 ] ## 직접 변경 경우 [1] Android 1) android/app/src/main/AndroidManifest.xml 에서 pakagename 변경 2) android/app/build.gradle 에서 defaultConfig 에서 applicationId 와 namespace 변경 3) MainActivity.kt 또는 .java 에서 변경 [2] IOS --- 여기까지는 단순 코드 변경 ## fireabase => 패키지 이름 변경 불가 다시 설치 ## kakao

위젯을 그린 후 다시 위젯을 그리고 싶을때 ! WidgetsBinding.instance.addPostFrameCallback((_)

[ERROR:flutter/runtime/dart_vm_initializer.cc(41)] Unhandled Exception: 'package:flutter/src/services/hardware_keyboard.dart': Failed assertion: line 434 pos 16: '_pressedKeys.containsKey(event.physicalKey)': A KeyUpEvent is dispatched, but the state shows that the physical key is not pressed. If this occurs in real application, please report this bug to Flutter. If this occurs in unit tests, pl..

* 안드로이드 기준 터미널 1. adb pair [ip]:[port] 2. adb connect [ip]:[port] 3. fvm flutter run 하면 기기 번호 나옴 4. fvm flutter run -d adb-[기기 일련 번호]

// ignore_for_file: prefer_const_constructors // 58:26 (https://www.youtube.com/watch?v=vtGCteFYs4M) import 'package:flutter/material.dart'; import 'package:flutter_riverpod/flutter_riverpod.dart'; void main() { // riverpod을 사용하기 위해 ProviderScope로 뚜껑을 감싸줌 runApp(ProviderScope(child: const App())); } // null값 계산을 위한 +연산자오버로딩 extension OptionalInfixAddition on T? { T? operator +(T? other) { final ..

해당에서 해결 방법 https://github.com/flutter/flutter/issues/76393 [tool] No toolchains found in the NDK toolchains folder for ABI with prefix: arm-linux-androideabi · Issue #76393 · flutter/f @kanamoto commented on Feb 19, 2021, 5:27 PM UTC: Thanks for the feedback! If your issue is related to the Flutter framework itself, please open an issue at github.com/flutter/flutter. Steps to Rep... github.com

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extension OptionalInfixAddition on T? { T? operator +(T? other) { return (this??0) + (other??0) as T; } } void main() { final int? n1 = null; final int? n2 = 3; print('res: ${n1 + n2}'); } 결과 : res: 3