'net usershare' returned error 255: net usershare add: cannot convert name "Everyone" to a SID. Access denied.

[Shahar Or]

Trying to create a share I get this error and sharing fails:
"'net usershare' returned error 255: net usershare add: cannot convert name "Everyone" to a SID. Access denied."

Screen shot attached.

Tried other another folder. Doesn't work.

Folder permissions are:
drwxr-xr-x 4 shahar shahar 4096 Jan 19 09:21 /home/shahar/tmp/

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: gnome-user-share 3.0.4-0ubuntu1
ProcVersionSignature: Ubuntu 3.13.0-4.19-generic 3.13.0-rc8
Uname: Linux 3.13.0-4-generic x86_64
ApportVersion: 2.13.1-0ubuntu1
Architecture: amd64
CurrentDesktop: Unity
Date: Sun Jan 19 14:08:31 2014
EcryptfsInUse: Yes
InstallationDate: Installed on 2010-10-12 (1194 days ago)
InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release amd64 (20101007)
SourcePackage: gnome-user-share
UpgradeStatus: Upgraded to trusty on 2013-10-26 (84 days ago)

[Mirko Minardi (starless78)]

Same issue.

I automatically mount /dev/sda7 at boot. This is my fstab:

UUID=72c14b49-940f-4e77-a390-ee853b01f322 /media/dati ext4 discard,noatime,rw,defaults 0 0

and folder permissions are:

drwxr-xr-x 37 test test 4096 gen 19 11:15 /media/dati

drwx------ 3 test test 4096 gen 18 21:51 /media/dati/BackupSBS <-- This is folder that I want share.

[Shahar Or (mightyiam)]

Mirko, please mark as affecting you.

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Bai Lee (calidion)]

encountered the same problem