原因就是無法下載包
1、“科學”上網,去Google下載
2、配置阿里鏡像
需要改動的地方:
1、修改 工程build.gradle , 即 .android/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' }
// google()
// jcenter()
}
dependencies {
classpath 'com.android.tools.build:gradle:3.2.1'
}
}
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' }
// google()
// jcenter()
}
}
task clean(type: Delete) {
delete rootProject.buildDir
}
ext {
minSdkVersion = 23
targetSdkVersion = 26
compileSdkVersion = 26
supportLibraryVersion = '26.1.0'
}
將兩處
// google()
// jcenter()
改爲 阿里的鏡像
2、更改 Flutter 軟件中的 flutter.gradle
目錄:
flutter/packages/flutter_tools/gradle/flutter.gradle
把其中的Google 改成阿里鏡像
buildscript {
repositories {
//google()
//jcenter()
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:3.2.1'
}
}
3、Offine work 取消打鉤
4、kotlin update
Tools--->Kotlin--->Configure Kotlin Plugin Updates
手動安裝kotlin , 重啓Androidstudio
至此配置完畢
運行項目
配置好後,可能還會報其他jar下載失敗,多運行幾遍,多次下載jar,一般都是可以下載成功的。