How can i fix the RKE Problem in ./rke_linux-amd64 up

[My Environment]
Centos 7.3
docker 1.13.1

When i Run “./rke_linux-amd64 up” , It will occur allow error: (PS: Anyone can help me to fix ?)

INFO[0000] Building Kubernetes cluster
INFO[0000] [dialer] Setup tunnel for host []
WARN[0000] Failed to set up SSH tunneling for host []: Can’t retrieve Docker Info: error during connect: Get http://%2Fvar%2Frun%2Fdocker.sock/v1.24/info: Failed to dial ssh using address []: ssh: handshake failed: ssh: unable to authenticate, attempted methods [none publickey], no supported methods remain
WARN[0000] Removing host [] from node lists
FATA[0000] Cluster must have at least one etcd plane host

See steps described here: