编辑 /etc/apt/sources.list 文件：
sudo vim /etc/apt/sources.list
进入编辑界面，注释原有的内容，添加如下内容：
deb http://mirrors.aliyun.com/raspbian/raspbian/ jessie main non-free contrib rpi deb-src http://mirrors.aliyun.com/raspbian/raspbian/ jessie main non-free contrib rpi
更新
sudo apt-get update
更新依赖关系
sudo apt-get upgrade -y