Comment 3 for bug 1437671

I am facing the same problem while installing the ubuntu-desktop-next :
dpkg: error processing package ubuntu-desktop-next (--configure):
 dependency problems - leaving unconfigured
Errors were encountered while processing:
 bluetooth-touch
 ubuntu-desktop-next
E: Sub-process /usr/bin/dpkg returned an error code (1)

error log :
neo@superstar:~$ systemctl status bluetooth-touch.service
● bluetooth-touch.service - Bluetooth init for Touch devices
   Loaded: loaded (/lib/systemd/system/bluetooth-touch.service; enabled; vendor preset: enabled)
   Active: failed (Result: exit-code) since 三 2015-05-06 23:00:18 CST; 54s ago
  Process: 11727 ExecStart=/bin/sh -ec SCRIPT=/usr/share/bluetooth-touch/`getprop ro.product.device`; [ ! -x $SCRIPT ] || exec $SCRIPT (code=exited, status=126)
 5月 06 23:00:18 superstar systemd[1]: Starting Bluetooth init for Touch devices...
 5月 06 23:00:18 superstar sh[11727]: /bin/sh: 1: exec: /usr/share/bluetooth-touch/: Permission denied
 5月 06 23:00:18 superstar systemd[1]: bluetooth-touch.service: control process exited, code=exited status=126
 5月 06 23:00:18 superstar systemd[1]: Failed to start Bluetooth init for Touch devices.
 5月 06 23:00:18 superstar systemd[1]: Unit bluetooth-touch.service entered failed state.
 5月 06 23:00:18 superstar systemd[1]: bluetooth-touch.service failed.
neo@superstar:~$ ls /usr/share/bluetooth-touch/
flo grouper maguro mako

I have checked this command : getprop ro.product.device, but it's result is empty. log as follow:
neo@superstar:~$ getprop ro.product.device

neo@superstar:~$

please help to solve the problem. thx