2D Nav Goal doesn't work after using kinect instead of Hokuyo Laser [closed]

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Hi,

• I had a navigation package for a six wheeled robot.
• While I was using Hokuyo Laser in the navigation package in Rviz, both of the 2D Nav Goal and the 2D Pose Estimate worked successfully.
• when I used kinect instead of Hokuyo Laser,the 2D Pose estimate worked,but the 2D Nav Goal didn't work.

Hint,

I didn't change any thing in the navigation package except adding sensors.xacro file in the URDF folder of the package which contain kinect from turtlebot robot.

So,

• my question is what is the cause of this error ? and how can I solve it ?

Is that because I didn't change any thing in the navigation package except adding sensors.xacro file in the URDF folder of the package which contain kinect from turtlebot robot?? as kinect has parameters that differ from Hokuyo Laser,so I need to change , remove or add some files to launch folder of the package to be suitable for kinect.

Any suggestions,please ??

• My distribution is Fuerte.
• I use Ubuntu 12.04 LTS.