google_sign_in问题

问题描述

在使用OAuth和google_sign_in使用Gmail创建登录时遇到此错误：在Flutter应用程序中为^ 4.5.5

[38;5;248mLaunching lib\main.dart on dub LX1 in debug mode...[39;49m
 lib\main.dart
E:\Flutter_windows_1.20.4-stable_1\Flutter\.pub-cache\hosted\pub.dartlang.org\google_sign_in-4.5.5\android\src\main\java\io\Flutter\plugins\googlesignin\GoogleSignInPlugin.java:23: error: package com.google.android.gms.tasks does not exist
import com.google.android.gms.tasks.OnCompleteListener;
                                   ^
E:\Flutter_windows_1.20.4-stable_1\Flutter\.pub-cache\hosted\pub.dartlang.org\google_sign_in-4.5.5\android\src\main\java\io\Flutter\plugins\googlesignin\GoogleSignInPlugin.java:24: error: package com.google.android.gms.tasks does not exist
import com.google.android.gms.tasks.RuntimeExecutionException;
                                   ^
E:\Flutter_windows_1.20.4-stable_1\Flutter\.pub-cache\hosted\pub.dartlang.org\google_sign_in-4.5.5\android\src\main\java\io\Flutter\plugins\googlesignin\GoogleSignInPlugin.java:25: error: package com.google.android.gms.tasks does not exist
import com.google.android.gms.tasks.Task;
                                   ^
E:\Flutter_windows_1.20.4-stable_1\Flutter\.pub-cache\hosted\pub.dartlang.org\google_sign_in-4.5.5\android\src\main\java\io\Flutter\plugins\googlesignin\GoogleSignInPlugin.java:471: error: cannot find symbol
    private void onSignInResult(Task<GoogleSignInAccount> completedTask) {
                                ^
  symbol:   class Task
  location: class Delegate
E:\Flutter_windows_1.20.4-stable_1\Flutter\.pub-cache\hosted\pub.dartlang.org\google_sign_in-4.5.5\android\src\main\java\io\Flutter\plugins\googlesignin\GoogleSignInPlugin.java:363: error: cannot find symbol
      Task<GoogleSignInAccount> task = signInClient.silentSignIn();
      ^
  symbol:   class Task
  location: class Delegate
E:\Flutter_windows_1.20.4-stable_1\Flutter\.pub-cache\hosted\pub.dartlang.org\google_sign_in-4.5.5\android\src\main\java\io\Flutter\plugins\googlesignin\GoogleSignInPlugin.java:369: error: cannot find symbol
            new OnCompleteListener<GoogleSignInAccount>() {
                ^
  symbol:   class OnCompleteListener
  location: class Delegate
E:\Flutter_windows_1.20.4-stable_1\Flutter\.pub-cache\hosted\pub.dartlang.org\google_sign_in-4.5.5\android\src\main\java\io\Flutter\plugins\googlesignin\GoogleSignInPlugin.java:404: error: cannot find symbol
              new OnCompleteListener<Void>() {
                  ^
  symbol:   class OnCompleteListener
  location: class Delegate
E:\Flutter_windows_1.20.4-stable_1\Flutter\.pub-cache\hosted\pub.dartlang.org\google_sign_in-4.5.5\android\src\main\java\io\Flutter\plugins\googlesignin\GoogleSignInPlugin.java:424: error: cannot find symbol
              new OnCompleteListener<Void>() {
                  ^
  symbol:   class OnCompleteListener
  location: class Delegate
E:\Flutter_windows_1.20.4-stable_1\Flutter\.pub-cache\hosted\pub.dartlang.org\google_sign_in-4.5.5\android\src\main\java\io\Flutter\plugins\googlesignin\GoogleSignInPlugin.java:479: error: cannot find symbol
      } catch (RuntimeExecutionException e) {
               ^
  symbol:   class RuntimeExecutionException
  location: class Delegate
9 errors

FAILURE: Build Failed with an exception.

* What went wrong:
Execution Failed for task ':google_sign_in:compileDebugJavaWithJavac'.
> Compilation Failed; see the compiler error output for details.

* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.

* Get more help at https://help.gradle.org

BUILD Failed in 52s
Exception: Gradle task assembleDebug Failed with exit code 1
Exited (sigterm)

解决方法

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