After upgrading Docker on Ubuntu

My system is Ubuntu14.04 original is Docker1.6 now upgrade to Docker 1.7
$ Uname -a
Linux whw-virtual-machine 3.13.0-32-generic # 57-Ubuntu SMP Tue Jul 15 03:51:08 UTC 2014 x86_64 x86_64 x86_64 GNU / Linux

I look at the official upgrade method:
Upgrade Docker
To install the latest version of Docker with wget:
$ Wget -qO- | sh

The results show an error:
$ Docker images
Error response from daemon: client and server do not have same version (client: 1.19, server: 1.18)

  • Rancher 1.5 full release!
  • How can I upgrade from Docker 1.4.1 to Docker 1.5.0?
  • 2 Solutions collect form web for “After upgrading Docker on Ubuntu”

    OK, this problem was resolved, as long as the restart on the line, I was a direct restart the computer. The The Did not try to restart Docker

    Look at the output is inconsistent with the client and server version lead to the wrong, you docker engine upgrade to 1.9 on the line

    Heads up! This alert needs your attention, but it's not super important.