구글 로그인 방법을 다 써보고 구글링도 해봤는데 도저히 안되서 질문올립니다.

안녕하세요. 현재 학습 중인데 아래와 같은 오류가 뜨고 있습니다.

구글 로그인 방법은 강의에 나온데로 진행하였습니다.

W/GooglePlayServicesUtil( 8149): Google Play Store is missing.

W/ActivityThread( 8149): handleWindowVisibility: no activity for token android.os.BinderProxy@80b4f64

E/flutter ( 8149): [ERROR:flutter/lib/ui/ui_dart_state.cc(157)] Unhandled Exception: PlatformException(sign_in_failed, com.google.android.gms.common.api.ApiException: 12500: , null)

E/flutter ( 8149): #0      StandardMethodCodec.decodeEnvelope (package:flutter/src/services/message_codecs.dart:569:7)

E/flutter ( 8149): #1      MethodChannel.invokeMethod (package:flutter/src/services/platform_channel.dart:321:33)

E/flutter ( 8149): <asynchronous suspension>

E/flutter ( 8149): #2      MethodChannel.invokeMapMethod (package:flutter/src/services/platform_channel.dart:349:48)

E/flutter ( 8149): #3      MethodChannelGoogleSignIn.signIn (package:google_sign_in_platform_interface/src/method_channel_google_sign_in.dart:45:10)

E/flutter ( 8149): #4      GoogleSignIn._callMethod (package:google_sign_in/google_sign_in.dart:230:42)

E/flutter ( 8149): <asynchronous suspension>

E/flutter ( 8149): #5      GoogleSignIn._addMethodCall (package:google_sign_in/google_sign_in.dart:285:18)

E/flutter ( 8149): #6      GoogleSignIn.signIn (package:google_sign_in/google_sign_in.dart:356:9)

E/flutter ( 8149): #7      LoginPage._handleSignIn (package:bjjmag_app/login_page.dart:40:58)

E/flutter ( 8149): #8      LoginPage.build.<anonymous closure> (package:bjjmag_app/login_page.dart:27:17)

E/flutter ( 8149): #9      _InkResponseState._handleTap (package:flutter/src/material/ink_well.dart:706:14)

E/flutter ( 8149): #10     _InkResponseState.build.<anonymous closure> (package:flutter/src/material/ink_well.dart:789:36)

E/flutter ( 8149): #11     GestureRecognizer.invokeCallback (package:flutter/src/gestures/recognizer.dart:182:24)

E/flutter ( 8149): #12     TapGestureRecognizer.handleTapUp (package:flutter/src/gestures/tap.dart:486:11)

E/flutter ( 8149): #13     BaseTapGestureRecognizer._checkUp (package:flutter/src/gestures/tap.dart:264:5)

E/flutter ( 8149): #14     BaseTapGestureRecognizer.handlePrimaryPointer (package:flutter/src/gestures/tap.dart:199:7)

E/flutter ( 8149): #15     PrimaryPointerGestureRecognizer.handleEvent (package:flutter/src/gestures/recognizer.dart:467:9)

E/flutter ( 8149): #16     PointerRouter._dispatch (package:flutter/src/gestures/pointer_router.dart:76:12)

E/flutter ( 8149): #17     PointerRouter._dispatchEventToRoutes.<anonymous closure> (package:flutter/src/gestures/pointer_router.dart:117:9)

E/flutter ( 8149): #18     _LinkedHashMapMixin.forEach (dart:collection-patch/compact_hash.dart:379:8)

E/flutter ( 8149): #19     PointerRouter._dispatchEventToRoutes (package:flutter/src/gestures/pointer_router.dart:115:18)

E/flutter ( 8149): #20     PointerRouter.route (package:flutter/src/gestures/pointer_router.dart:101:7)

E/flutter ( 8149): #21     GestureBinding.handleEvent (package:flutter/src/gestures/binding.dart:218:19)

E/flutter ( 8149): #22     GestureBinding.dispatchEvent (package:flutter/src/gestures/binding.dart:198:22)

E/flutter ( 8149): #23     GestureBinding._handlePointerEvent (package:flutter/src/gestures/binding.dart:156:7)

E/flutter ( 8149): #24     GestureBinding._flushPointerEventQueue (package:flutter/src/gestures/binding.dart:102:7)

E/flutter ( 8149): #25     GestureBinding._handlePointerDataPacket (package:flutter/src/gestures/binding.dart:86:7)

E/flutter ( 8149): #26     _rootRunUnary (dart:async/zone.dart:1138:13)

E/flutter ( 8149): #27     _CustomZone.runUnary (dart:async/zone.dart:1031:19)

E/flutter ( 8149): #28     _CustomZone.runUnaryGuarded (dart:async/zone.dart:933:7)

E/flutter ( 8149): #29     _invoke1 (dart:ui/hooks.dart:273:10)

E/flutter ( 8149): #30     _dispatchPointerDataPacket (dart:ui/hooks.dart:182:5)

E/flutter ( 8149): 

E/FirebaseInstanceId( 8149): Google Play services missing or without correct permission.

W/.www.bjjmag_ap( 8149): Accessing hidden method Lsun/misc/Unsafe;->getObject(Ljava/lang/Object;J)Ljava/lang/Object; (greylist, linking, allowed)

W/.www.bjjmag_ap( 8149): Accessing hidden method Lsun/misc/Unsafe;->getInt(Ljava/lang/Object;J)I (greylist, linking, allowed)

W/.www.bjjmag_ap( 8149): Accessing hidden method Lsun/misc/Unsafe;->getLong(Ljava/lang/Object;J)J (greylist,core-platform-api, linking, allowed)

W/.www.bjjmag_ap( 8149): Accessing hidden method Lsun/misc/Unsafe;->putInt(Ljava/lang/Object;JI)V (greylist, linking, allowed)

W/.www.bjjmag_ap( 8149): Accessing hidden method Lsun/misc/Unsafe;->getLong(Ljava/lang/Object;J)J (greylist,core-platform-api, linking, allowed)

W/.www.bjjmag_ap( 8149): Accessing hidden method Lsun/misc/Unsafe;->putInt(Ljava/lang/Object;JI)V (greylist, linking, allowed)