Nitin, 
What version of debian are you using?  And can you report the output of `dpkg-query libltdl3-dev`  and `dpkg-query -W' -f='${Package} ${Status}\n' `  ?

I think this might be related to this ticket.  https://code.ros.org/trac/ros/ticket/2866 or https://code.ros.org/trac/ros/ticket/2868

Tully

On Thu, Jul 8, 2010 at 1:12 PM, nitinDhiman <nitinkdhiman@gmail.com> wrote:

I am using ros Cturtle on Debian Squeeze with ros-pkg revision 40515 for pr2
packages.
For installing pr2 packages, required libltdl3-dev is provided by a deb
called libltdl-dev in debian. Even after installing this deb,  I am getting
following error:

rosmake pr2_gripper_action
[ rosmake ] [ make ]
[ rosmake ] Packages requested are: ['pr2_gripper_action']
[ rosmake ] Logging to directory
[ rosmake ] /home/nitin/.ros/rosmake/rosmake_output-20100709-013008
[ rosmake ] Expanded args ['pr2_gripper_action'] to:
['pr2_gripper_action']
[ rosmake ] Checking rosdeps compliance for packages pr2_gripper_action.
This may take a few seconds.
[ rosmake ] rosdep check failed to find system dependencies: Did not detect
packages: ['libltdl3-dev']


I am not able to locate in which cofiguration file, i shall make change.


nitin
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Tully Foote
Systems Engineer
Willow Garage, Inc.
tfoote@willowgarage.com
(650) 475-2827