國(guó)內(nèi)使用flutter需要在多處進(jìn)行設(shè)置，本文是在flutter開(kāi)發(fā)環(huán)境配置好，但是一直處于Running Gradle task 'assembleDebug'...，進(jìn)行的講解。（windows環(huán)境）
1.環(huán)境變量設(shè)置

PUB_HOSTED_URL=https://pub.flutter-io.cn
FLUTTER_STORAGE_BASE_URL=https://storage.flutter-io.cn

2.flutter項(xiàng)目的android目錄中，gradle目錄gradle-wrapper.properties，（hikvision安全開(kāi)發(fā)環(huán)境，其他電腦環(huán)境不必設(shè)置）

distributionBase=GRADLE_USER_HOME
distributionPath=wrapper/dists
zipStoreBase=GRADLE_USER_HOME
zipStorePath=wrapper/dists
distributionUrl=https\://services.gradle.org/distributions/gradle-5.4.1-all.zip

3.flutter項(xiàng)目的android目錄中，項(xiàng)目的build.gradle

buildscript {
    repositories {
       
        maven { url 'https://maven.aliyun.com/repository/google' }
        maven { url 'https://maven.aliyun.com/repository/jcenter' }
        maven { url 'http://maven.aliyun.com/nexus/content/groups/public' }
    }

    dependencies {
        classpath 'com.android.tools.build:gradle:3.5.0'
    }
}

allprojects {
    repositories {
      
        maven { url 'https://maven.aliyun.com/repository/google' }
        maven { url 'https://maven.aliyun.com/repository/jcenter' }
        maven { url 'http://maven.aliyun.com/nexus/content/groups/public' }
    }
}

rootProject.buildDir = '../build'
subprojects {
    project.buildDir = "${rootProject.buildDir}/${project.name}"
}
subprojects {
    project.evaluationDependsOn(':app')
}

task clean(type: Delete) {
    delete rootProject.buildDir
}

4.flutter的sdk中進(jìn)行設(shè)置，處于此目錄下D:\fluttersdk\packages\flutter_tools\gradle\flutter.gradle,

...
buildscript {
    repositories {

        maven { url 'https://maven.aliyun.com/repository/google' }
        maven { url 'https://maven.aliyun.com/repository/jcenter' }
        maven { url 'http://maven.aliyun.com/nexus/content/groups/public' }
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:3.4.0'
    }
}
...
class FlutterPlugin implements Plugin<Project> {
    private static final String DEFAULT_MAVEN_HOST = "https://storage.flutter-io.cn/download.flutter.io";
...

5.flutter的sdk中進(jìn)行設(shè)置，處于此目錄下D:\fluttersdk\packages\flutter_tools\gradle\resolve_dependencies.gradle,

...
repositories {

      maven { url 'https://maven.aliyun.com/repository/google' }
      maven { url 'https://maven.aliyun.com/repository/jcenter' }
      maven { url 'http://maven.aliyun.com/nexus/content/groups/public' }
      maven {
           url "https://storage.flutter-io.cn/download.flutter.io"
       }


}
...

6.清除緩存，重新運(yùn)行