virt-v2v on remote xen fails with error code 38 nc: command not found

Issue

virt-v2v on remote xen fails with error code 38 nc: command not found why ?

[root@example ~]# virt-v2v -o rhev -ic xen+ssh://root@server1.example.com -osd nfs.example.com:/media/exports FACTUM-TS1
root@nfs.example.com's password: 
virt-v2v: Failed to connect to xen+ssh://root@nfs.example.com: libvirt error code: 38, message: server closed connection: bash: nc: command not found