laradock安装失败 Please provide a source image with `from` prior to commit

系统是centos7 安装laradock的时候报错

Step 1 : ARG PHP_REGISTRY

Please provide a source image with from prior to commit

翻来覆去找不到答案

最后看到了点提示 好像是因为docker版本太低了 我就卸载了docker 按照官网重新安装了最新版docker

然后就好了...

stackoverflow原文地址

https://stackoverflow.com/questions/45588976/docker-build-failing-when-arg-instruction-is-given-before-from-in-dockerfile