Python
Java
PHP
IOS
Android
Nodejs
JavaScript
Html5
Windows
Ubuntu
Linux
报错Error : Program type already present: android.support.design.widget.CoordinatorLayout$
方法一 support依赖版本改为27 1 1并添加一下配置 implementation com android support appcompat v7 27 1 1 configurations all exclude group c
安卓基础知识