mount: wrong fs type, bad option, bad superblock

在beaglebone black 的Debian 系统挂载x虚拟机下的linux系统出现以下错误：
root@karl-desktop:~$ mount -t nfs 192.168.2.108:/qtproject  /nfsdir
mount: wrong fs type, bad option, bad superblock on 192.168.2.108:/qtproject,
missing codepage or helper program, or other error
(for several filesystems (e.g. nfs, cifs) you might
need a /sbin/mount.<type> helper program)
In some cases useful info is found in syslog - try
dmesg | tail  or so

解决方法：
在终端下输入apt-get install nfs-common解决问题