Android编译报错：Cannot resolve external dependency com.android.tools.build:gradle:7.3.0 because no repositories are defined

修改根目录的build.gradle 增加 repositories 配置，然后再File>Sync Project with Gradle Files，再执行Build>Rebuild Project

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buildscript {     ext {         agp_version = '7.3.0'     }     repositories {         maven { url "https://jitpack.io" }         maven { url 'https://maven.aliyun.com/repository/releases' }         maven { url 'https://maven.aliyun.com/repository/jcenter' }         maven { url 'https://maven.aliyun.com/repository/google' }         maven { url 'https://maven.aliyun.com/repository/central' }         maven { url 'https://maven.aliyun.com/repository/gradle-plugin' }         maven { url 'https://maven.aliyun.com/repository/public' }         google()         mavenCentral()     }     dependencies {         classpath 'com.android.tools.build:gradle:7.3.0'     } }// Top-level build file where you can add configuration options common to all sub-projects/modules.   task clean(type: Delete) {     delete rootProject.buildDir }