E: Unable to locate package ros-hydro-rqt_reconfigure

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I'm using Ubuntu 12.04 with ROS hydro.I'm trying to follow this tutorial

when i type:

 sudo apt-get install ros-hydro-rviz ros-hydro-rqt_reconfigure ros-hydro-openni*

i get the following output:

    asaad@VAIO:~$ sudo apt-get install ros-hydro-rviz ros-hydro-rqt_reconfigure ros-hydro-openni*
    [sudo] password for asaad: 
    Reading package lists... Done
    Building dependency tree       
    Reading state information... Done
    Note, selecting 'ros-hydro-openni-tracker' for regex 'ros-hydro-openni*'
    Note, selecting 'ros-hydro-openni2-launch' for regex 'ros-hydro-openni*'
    Note, selecting 'ros-hydro-openni2-camera' for regex 'ros-hydro-openni*'
    Note, selecting 'ros-hydro-openni-launch' for regex 'ros-hydro-openni*'
    Note, selecting 'ros-hydro-openni-camera' for regex 'ros-hydro-openni*'
    Note, selecting 'ros-hydro-openni-tracker-jsk-patch' for regex 'ros-hydro-openni*'
    E: Unable to locate package ros-hydro-rqt_reconfigure
    asaad@VAIO:~$