问题：
I'm running Docker under Vagrant under OS X 10.8.4 (Mountain Lion), and whenever I try to delete a saved image, I get an error: 我在OS X 10.8.4（Mountain Lion）下在Vagrant下运行Docker，每当我尝试删除已保存的图像时，我都会收到错误消息：
$ docker rmi some-image-id
2013/07/15 hh:mm:ss unexpected JSON input
According to the rmi help, the proper syntax is docker rmi IMAGE [IMAGE...] , and I'm not sure what to make of that. 根据rmi帮助，正确的语法是docker rmi IMAGE [IMAGE...] ，我不知道该怎么做。
How can I delete an image? 如何删除图像？
$ docker version
Client version: 0.4.8
Server version: 0.4.8
Go version: go1.1
$docker info
Containers: 1
Images: 3
Interestingly, when I run docker ps , no containers show up at all. 有趣的是，当我运行docker ps ，根本没有容器出现。 Running docker images shows four (4) base images and one (1) node image. 运行docker images显示四（4）个base图像和一（1）个node图像。
解决方案：
参考一： https://stackoom.com/question/1C7Xv/如何删除Docker中的图像参考二： https://oldbug.net/q/1C7Xv/How-does-one-remove-an-image-in-Docker
来源：oschina
链接：https://my.oschina.net/u/3797416/blog/4327550