Problem sudo apt-get update

sicomz@xxx:~$ sudo apt-get update
E: Could not get lock /var/lib/apt/lists/lock - open (11: Resource temporarily unavailable)
E: Unable to lock the list directory
sicomz@xxx:~$

pasti kalian kesel ya :) waktu kalian sedang update source,
jangan bingung dah.
maka penyelesaianya seperti ini

buka ;
System => Administrator => System Monitor => Processes
klik " View => All Processes"
cari " apt-get " pada Processes Name lalu "End Process"

semoga membantu -__-"