> Could not find com.android.tools.build:gradle:3.2.0. Searched in the follo

導入demo代碼 報錯：

ERROR: Could not find com.android.tools.build:gradle:3.2.0.
Searched in the following locations:
  - file:/C:/Users/user/.m2/repository/com/android/tools/build/gradle/3.2.0/gradle-3.2.0.pom
  - file:/C:/Users/user/.m2/repository/com/android/tools/build/gradle/3.2.0/gradle-3.2.0.jar
  - https://repo.maven.apache.org/maven2/com/android/tools/build/gradle/3.2.0/gradle-3.2.0.pom
  - https://repo.maven.apache.org/maven2/com/android/tools/build/gradle/3.2.0/gradle-3.2.0.jar
  - https://jcenter.bintray.com/com/android/tools/build/gradle/3.2.0/gradle-3.2.0.pom
  - https://jcenter.bintray.com/com/android/tools/build/gradle/3.2.0/gradle-3.2.0.jar
Required by:
    project :
Add Google Maven repository and sync project
Open File

build文件：

buildscript {
    repositories {
//        google()
        mavenLocal()
        mavenCentral()
        jcenter()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:3.2.0'
        classpath 'org.greenrobot:greendao-gradle-plugin:+'

    }
}

allprojects {
    repositories {
//        google()
        jcenter()
        maven { url 'https://dl.google.com/dl/android/maven2/' }
    }
}

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

一直以爲是緩存目錄或者gradle目錄配置的問題，弄了半天，不經意看到少了google()庫的添加。。。肉疼啊。