NFS mount error

I am trying to mount a NFS disk on a rancheros 1.4 host, but getting this error:

[rancher@rancher ~]$ sudo mount -t nfs nas:/somepatch /mnt
mount: wrong fs type, bad option, bad superblock on nas:/somepath,
missing codepage or helper program, or other error
(for several filesystems (e.g. nfs, cifs) you might
need a /sbin/mount. helper program)

   In some cases useful info is found in syslog - try
   dmesg | tail or so.

dmesg didn’t have any error

[ 152.746223] RPC: Registered named UNIX socket transport module.
[ 152.746226] RPC: Registered udp transport module.
[ 152.746227] RPC: Registered tcp transport module.
[ 152.746227] RPC: Registered tcp NFSv4.1 backchannel transport module.
[ 152.791610] FS-Cache: Netfs ‘nfs’ registered for caching

Am I doing something wrong?