错误提示： Warning from https://repo.packagist.org: Support for Composer 1 is deprecated and some packages will not be available. You should ...

更新一下 composer 工具版本：composer self-update ...

...

python -m pip install --upgrade pip -i https://pypi.douban.com/simple ...

登录root用户,用vim /etc/resolv.conf ，打开rsolv.conf，添加DNS地址 nameserver 8.8.8.8nameserver 8.8.4.4nameserv ...

--ignore-installed --upgrade django -i http://mirrors.aliyun.com/py ...

原因：pip版本过低导致安装第三方库失败。 解决办法：更新pip版本 方案一：执行命令easy_install -U pip 方案二：若方案一失败，则可采用国内源下载更新。执行命令：python -m pip install --upgrade pip -i https ...

https://mirrors.aliyun.com/centos/7/isos/x86_64/CentOS-7-x86_64-Everything-2003.iso ...