RGBD slam on groovy

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I want to run the rgbd slam package provided on open slam website with ROS groovy. The readme file with the package has instructions for diamondback. I have downloaded the package along with the hogman_minimal library. I have also edited the manifest.xml file adding <depend package="openni_camera"/> for openni dependency. But now when I run rosdep install rgbdsalm_freiburg, I get error:

ERROR: Rosdep cannot find all required resources to answer your query
Missing resource rgbdsalm_freiburg
ROS path [0]=/opt/ros/groovy/share/ros
ROS path [1]=/opt/ros/groovy/share
ROS path [2]=/opt/ros/groovy/stacks

I am sure my RGBD slam package is in the $ROS_PACKAGE_PATH variable because when I do roscd rgbdslam, I am able to change my directory to rgbdslam folder.

How can I make it work?