erreur de montage d'un partage samba

En suivant cet ubuntu guide monter des dossiers réseau protégés par un mot de passe et obtenir une erreur de ce type

$ sudo mount -a 
mount error(22):Invalid argument
Refer to the mount.cifs(8) manual page (e.g. man mount.cifs)

Quelqu'un peut-il me donner des conseils ?

Voici le fichier fstab

 # /etc/fstab: static file system information.

 #
 # Use 'blkid' to print the universally unique identifier for a

 # device; this may be used with UUID= as a more robust way to name devices

 # that works even if disks are added and removed. See fstab(5).

 #
 # <file system> <mount point>   <type>  <options>       <dump>  <pass>

 # / was on /dev/sda6 during installation
UUID=58b63c7f-9fe8-4422-a571-ebcc726caadc /               ext4    errors=remount-ro 0       1

 # /home was on /dev/sda7 during installation
UUID=04efdfed-5243-498f-ad5d-65119168e122 /home           ext4    defaults        0       2

 # swap was on /dev/sda8 during installation
UUID=0ddb7810-bfec-427d-937d-20ba0dbeb738 none            swap    sw              0       0

 #network drive

//192.168.0.10/HomeData /media/homeshare cifs credentials=/home/sean/.smbcredentials,iocharset=utf8,sec=ntlm 0 0