android studio 常见问题

Error:Could not find com.android.support:support-v4:26.0.2

Error:Could not find com.android.support:appcompat-v7:26.02

解决办法:
在项目的gradle中添加:

allprojects {

    repositories {

        jcenter()

        ....

        maven {

            url"https://maven.google.com"

        }

 

    }

}