卡在Resolving dependencies或报错

在项目的android/build.gradle文件编辑

        //注释掉
        //google()
        //jcenter()
        //使用国内源
        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' }