求帮助，AS打包apk时，一直报错Could not download lint-gradle.jar

Creator 2.x
#1

哪位大佬指导下，CocosCreator导入AndroidStudio，然后在AndroidStudio打包apk时，一直报错，Could not download lint-gradle.jar (com.android.tools.lint:lint-gradle:26.2.0): No cached version available for offline mode，这是哪的问题呢？怎么改呢？麻烦知道的说下

#2

google库无法访问，要不科学上网，要不就换成阿里的镜像库

        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' }