Using ROS with Kinect (Failed to set USB interface)

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Trying to use ROS with Kinect.

http://www.ros.org/wiki/openni_launch/Tutorials/QuickStart

This tutorial says it is as easy as plug in Kinect to USB and launch

roslaunch openni_launch openni.launch

But I get

process[camera_base_link3-21]: started with pid [32556]
terminate called after throwing an instance of 'openni_wrapper::OpenNIException'
  what():  unsigned int openni_wrapper::OpenNIDriver::updateDeviceList() @ /tmp/buildd/ros-fuerte-openni-camera-1.8.6/debian/ros-fuerte-openni-camera/opt/ros/fuerte/stacks/openni_camera/src/openni_driver.cpp @ 125 : enumerating image nodes failed. Reason: One or more of the following nodes could not be enumerated:

Image: PrimeSense/SensorV2/5.1.0.41: Failed to set USB interface!

[camera_nodelet_manager-1] process has died [pid 31934, exit code -6, cmd /opt/ros/fuerte/stacks/nodelet_core/nodelet/bin/nodelet manager __name:=camera_nodelet_manager __log:=...

What am I missing or doing wrong?

lsusb shows

Bus 002 Device 019: ID 045e:02b0 Microsoft Corp. Xbox NUI Motor
Bus 002 Device 020: ID 045e:02ad Microsoft Corp. Xbox NUI Audio
Bus 002 Device 021: ID 045e:02ae Microsoft Corp. Xbox NUI Camera