release 빌드에서만 lateinit property launcher has not been initialized, null 에러가 발생합니다.

[kghoon]

I/flutter ( 2680): [LoginBloc] PlatformException(error, lateinit property launcher has not been initialized, null, kotlin.x: lateinit property launcher has not been initialized I/flutter ( 2680): at g.n.a.b.d(Unknown Source:24) I/flutter ( 2680): at g.n.a.b.onMethodCall(Unknown Source:20) I/flutter ( 2680): at j.a.d.a.k$a.a(Unknown Source:17) I/flutter ( 2680): at io.flutter.embedding.engine.f.e.k(Unknown Source:18) I/flutter ( 2680): at io.flutter.embedding.engine.f.e.l(Unknown Source:20) I/flutter ( 2680): at io.flutter.embedding.engine.f.e.m(Unknown Source:0) I/flutter ( 2680): at io.flutter.embedding.engine.f.c.run(Unknown Source:12) I/flutter ( 2680): at android.os.Handler.handleCallback(Handler.java:938) I/flutter ( 2680): at android.os.Handler.dispatchMessage(Handler.java:99) I/flutter ( 2680): at android.os.Looper.loopOnce(Looper.java:226) I/flutter ( 2680): at android.os.Looper.loop(Looper.java:313) I/flutter ( 2680): at android.app.ActivityThread.main(ActivityThread.java:8751) I/flutter ( 2680): at java.lang.reflect.Method.invoke(Native Method) I/flutter ( 2680): at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:571) I/flutter ( 2680): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1135) I/flutter ( 2680): ) I/flutter ( 2680): #0 StandardMethodCodec.decodeEnvelope (package:flutter/src/services/message_codecs.dart:653) I/flutter ( 2680): #1 MethodChannel._invokeMethod (package:flutter/src/services/platform_channel.dart:296) I/flutter ( 2680): I/flutter ( 2680): #2 FlutterNaverLogin.logIn (package:flutter_naver_login/flutter_naver_login.dart:11) I/flutter ( 2680): I/flutter ( 2680): #3 NaverUtil.login (package:woodong/src/api/naver_api.dart:23) I/flutter ( 2680): I/flutter ( 2680): #4 LoginBloc.checkUserSignedUp (package:woodong/src/bloc/login/login_bloc.dart:53) I/flutter ( 2680): I/flutter ( 2680): #5 _LoginState.ssoLogin (package:woodong/src/ui/screen/login/login_screen.dart:81) I/flutter ( 2680): I/flutter ( 2680): #6 _LoginState.build.. (package:woodong/src/ui/screen/login/login_screen.dart:131) I/flutter ( 2680): I/flutter ( 2680): {code: -401, msg: this access token does not exist} 릴리즈 빌드에서만 발생하는 문제입니다. 'launcher' property 가 준비가 안될걸로 봐서 onAttachedToActivity 가 호출이 안되었거나, 타이밍 문제가 있는 것 같습니다.

[kghoon]

버전은 1.2.2 입니다.

[GwonHyeok]

안드로이드 디버그 빌드인경우 동일한 문제 발생합니다.

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[kghoon]

가이드에 나와 있는대로, MainActivity가 FlutterActivity대신 FlutterFragmentActivity 를 상속받도록 수정하니 해결되었습니다.