无法从存储库下载Docker映像。

I am trying to create a swarm setup on my laptop. I am running swarm daemon on laptop, and running 2 Ubuntu 14.04 VM as docker node. On one of the node(VM) I am able to run swarm and I can connect to swarm daemon. I can list the node with docker info and spwan a contianer on it. But when I try to pull swarm image on another VM node, I get the following error:I am trying to create a swarm setup on my lapto