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报错原因：
Could not get resource ‘https://dl.google.com/dl/android/maven2/com/android/tools/build/gradle/3.5.3/gradle-3.5.3.pom‘
网上说的解决方法都无效，增加了SS代理也无
折腾了一会儿，好像可以了。
- 把项目中的build.gradle中google()和jcenter()注释掉，换成阿里云的就可以了。
- 将Android Studio中所有的代理全部取消
- 另外将~/.gradle/gradle.properties中关于代理的内容全部注释掉。
build.gradle内容改为如下：
// Top-level build file where you can add configuration options common to all sub-projects/modules.
buildscript {
repositories {
//google()
//jcenter()
maven { url ‘https://maven.aliyun.com/nexus/content/repositories/google‘ }
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:3.5.3‘
// NOTE: Do not place your application dependencies here; they belong
// in the individual module build.gradle files
}
}
allprojects {
repositories {
maven { url ‘https://maven.aliyun.com/nexus/content/repositories/google‘ }
maven{ url ‘http://maven.aliyun.com/nexus/content/groups/public/‘ }
maven{ url ‘http://maven.aliyun.com/nexus/content/repositories/jcenter‘}
//google()
//jcenter()
}
}
task clean(type: Delete) {
delete rootProject.buildDir
}------------恢复内容结束------------