Nexus 4 Installation Problem

Nexus 4 Installation Problem

Every thing was fine. i followed the steps which was given on wiki.ubuntu.
At the final statge, i got this error. could someone help me please?
WARNING:phablet-flash:The device needs to have a clockwork mod recovery
image (or one that supports extendedcommands) in place for the
provisioning to work
INFO:phablet-flash:Restarting device... wait
INFO:phablet-flash:Restarting device... wait complete
error: device not found
ERROR:phablet-flash:Command 'adb shell mount /sdcard/' returned non-zero
exit status 255
Note : I use ubuntu 12.04 using wubi installed with windows 7 and Nexus 4
unlocked device.