I think some things may have been missing in cturtle before a release on June 22.  It sounds like you aren&#39;t up-to-date at least on pr2_arm_navigation_tutorials and perhaps some other packages dealing with arm navigation.  I&#39;ve just confirmed that everything should be there in cturtle-alpha-3, which includes pr2_arm_navigation-0.2.3.  Let us know if you get up-to-date and continue to have problems.<br>
<br>--Gil<br><br>--<br>E. Gil Jones (<a href="mailto:gjones@willowgarage.com" target="_blank">gjones@willowgarage.com</a>)<br>Research Engineer<br>Willow Garage, Inc.<br>68 Willow Road<br>Menlo Park, CA 94025<br>650.475.9772<br>

<br><br><div class="gmail_quote">On Thu, Jul 8, 2010 at 3:24 PM, nitinDhiman <span dir="ltr">&lt;<a href="mailto:nitinkdhiman@gmail.com">nitinkdhiman@gmail.com</a>&gt;</span> wrote:<br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
<br>
Launch files are also not available for rviz_collision_tutorial_2.launch,<br>
laser-perception.launch etc.<br>
<br>
Am I missing some packages??<br>
<br>
regards<br>
nitin<br>
<font color="#888888">--<br>
View this message in context: <a href="http://ros-users.122217.n3.nabble.com/motion-planning-tutorial-tp953023p953039.html" target="_blank">http://ros-users.122217.n3.nabble.com/motion-planning-tutorial-tp953023p953039.html</a><br>

</font><div><div></div><div class="h5">Sent from the ROS-Users mailing list archive at Nabble.com.<br>
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