Question: I am getting error like below

E: Could not get lock /var/lib/dpkg/lock - open (11: Resource temporarily unavailable)
E: Unable to lock the administration directory (/var/lib/dpkg/), is another process using it?

Answer: 
If you already runs GUI Synaptic Package Manager, and try to run "sudo apt-get install" from Terminal console, this error will occur.
Finally I got answer 
Before typing sudo apt-get install terminal

type the following on terminal

sudo rm /var/lib/apt/lists/lock

sudo rm /var/cache/apt/archives/lock

sudo rm /var/lib/dpkg/lock