flutter问题，Couldnotfindmethodmaven()forarguments的错误

buildscript {

    repositories {

        google()

        jcenter()

        mavenCentral()

       maven { url 'https://maven.google.com' }

        //mavenCentral()

     //   maven{ url 'http://maven.aliyun.com/nexus/content/groups/public/' }

    //    maven{ url 'http://maven.aliyun.com/nexus/content/repositories/jcenter'}

    }



    dependencies {

        classpath 'com.android.tools.build:gradle:3.2.1'

    }

}



allprojects {

    repositories {

      //  maven{ url 'http://maven.aliyun.com/nexus/content/groups/public/'}

       // maven{ url 'http://maven.aliyun.com/nexus/content/repositories/jcenter'}

        mavenCentral()

        jcenter()

    }

}



rootProject.buildDir = '../build'

subprojects {

    project.buildDir = "${rootProject.buildDir}/${project.name}"

}

subprojects {

    project.evaluationDependsOn(':app')

}



task clean(type: Delete) {

    delete rootProject.buildDir

}

Launching lib/main.dart on Android SDK built for x86 in debug mode...

Initializing gradle...                                       0.9s

Resolving dependencies...

* Error running Gradle:

ProcessException: Process "D:\flutterproject\tk\android\gradlew.bat" exited abnormally:

Project evaluation failed including an error in afterEvaluate {}. Run with --stacktrace for details of the afterEvaluate {}

error.



FAILURE: Build failed with an exception.



* Where:

Script 'D:\flutter\flutter\packages\flutter_tools\gradle\flutter.gradle' line: 27



* What went wrong:

A problem occurred evaluating script.

> Could not find method maven() for arguments [flutter_70fv7lssvws82r3weljr8tpe1$_run_closure1$_closure4@6a83feb5] on object of

type org.gradle.api.internal.initialization.DefaultScriptHandler.



* 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 1s

  Command: D:\flutterproject\tk\android\gradlew.bat app:properties





Please review your Gradle project setup in the android/ folder.