Hi,

I am trying to use openni_tracker. I have ros-fuerte-openni* installed. roslaunch openni_launch openni.launch is working properly and I can see the image in rviz. However, when I run rosrun openni_tracker openni_tracker, initially there was the following error.

Find user generator failed: This operation is invalid!

I installed NITE-bin-dev-linux-64-v1.5.2.23. Now the error has change to the following.

Find user generator failed: Can't create any node of the requested type!

Any help?