ros kinetic| ubuntu 16.04| Unable to correct problems, you have held broken packages.

edit

sanjay@sanjay-Lenovo-Z50-70:~$ sudo sh -c 'echo "deb http://packages.ros.org/ros/ubuntu $(lsb_release -sc) main" > /etc/apt/sources.list.d/ros-latest.list'
sanjay@sanjay-Lenovo-Z50-70:~$ sudo apt-key adv --keyserver hkp://ha.pool.sks-keyservers.net:80 --recv-key 421C365BD9FF1F717815A3895523BAEEB01FA116
Executing: /tmp/tmp.FkuwGma7Th/gpg.1.sh --keyserver
hkp://ha.pool.sks-keyservers.net:80
--recv-key
421C365BD9FF1F717815A3895523BAEEB01FA116
gpg: requesting key B01FA116 from hkp server ha.pool.sks-keyservers.net
gpg: key B01FA116: "ROS Builder <rosbuild@ros.org>" not changed
gpg: Total number processed: 1
gpg:              unchanged: 1
sanjay@sanjay-Lenovo-Z50-70:~$ sudo apt-get update
Hit:1 http://archive.ubuntu.com/ubuntu xenial InRelease
Hit:2 http://ppa.launchpad.net/ubuntu-desktop/ubuntu-make/ubuntu xenial InRelease
Hit:3 http://packages.ros.org/ros/ubuntu xenial InRelease
Reading package lists... Done      
sanjay@sanjay-Lenovo-Z50-70:~$ sudo apt-get install ros-kinetic-desktop-full
Reading package lists... Done
Building dependency tree       
Reading state information... Done
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:

The following packages have unmet dependencies:
 ros-kinetic-desktop-full : Depends: ros-kinetic-desktop but it is not going to be installed
                            Depends: ros-kinetic-perception but it is not going to be installed
                            Depends: ros-kinetic-simulators but it is not going to be installed
E: Unable to correct problems, you have held broken packages.
sanjay@sanjay-Lenovo-Z50-70:~$