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Hello! I am using turtlebot2 with kinect2.

I have installed & configured the libfreenect and the kinect2bridge successfully before. And I prompted to use your solution to use "navigation" on the turtlebot2 with kinect2.

I have followed your steps to copy the files to the specific places but when I launch the "roslaunch turtlebot_navigation gmapping_kinect2_opengl.launch" , the errors occurs as below:

[ INFO] [1460700235.209242631]: Using plugin "static_layer"
[ INFO] [1460700235.480002162]: Requesting the map...
[ERROR] [1460700236.768612683]: Failed to load nodelet [/kinect2_bridge] of type [kinect2_bridge/kinect2_bridge_nodelet] even after refreshing the cache: Could not find library corresponding to plugin kinect2_bridge/kinect2_bridge_nodelet. Make sure the plugin description XML file has the correct name of the library and that the library actually exists.
[ERROR] [1460700236.768681110]: The error before refreshing the cache was: Could not find library corresponding to plugin kinect2_bridge/kinect2_bridge_nodelet. Make sure the plugin description XML file has the correct name of the library and that the library actually exists.
[FATAL] [1460700236.769027446]: Service call failed!
[kinect2_bridge-2] process has died [pid 6531, exit code 255, cmd /opt/ros/indigo/lib/nodelet/nodelet load kinect2_bridge/kinect2_bridge_nodelet kinect2 __name:=kinect2_bridge __log:=/home/sun/.ros/log/b9e28048-02ce-11e6-8894-24fd52c570d7/kinect2_bridge-2.log].
log file: /home/sun/.ros/log/b9e28048-02ce-11e6-8894-24fd52c570d7/kinect2_bridge-2*.log

Would u please help me?

I am referring to Ros2Bot.
Thank you very much.

I was a setup using the procedure.
However, kinect2_bridge did not work.

$ rosrun kinect2_bridge kinect2_bridge
・・・
・・・
[kinect2_bridge] depth processing: ~nanHz (nanms) publishing rate: ~0Hz
[kinect2_bridge] color processing: ~301.53Hz (3.31642ms) publishing rate: ~7.65098Hz
・・・
・・・

I was investigating the cause.
kinect2_bridge did not work but Protonect can work.
So I entered the following command.

$ ldd /catkin_ws/devel/lib/kinect2_bridge | grep usb
libusb-1.0.so.0 => /home/ubuntu/Downloads/old_libfreenect2/libfreenect2/depends/libusb/lib/libusb-1.0.so.0 (0xb5185000)

$ ldd  ~/libfreenect2/examples/protonect/bin/Protonect | grep usb
libusb-1.0.so.0 => /home/ubuntu/libfreenect2/examples/protonect/../../depends/libusb/lib/libusb-1.0.so.0 (0xb6a51000)

Please tell me if you know the cause.

Hello,
when I finish Install kinect2 bridge,input " roslaunch kinect2_bridge kinect2_bridge.launch"，it came out that

[ INFO] [1515332760.994250122]: Loading nodelet /kinect2_bridge of type kinect2_bridge/kinect2_bridge_nodelet to manager kinect2 with the following remappings:
[ INFO] [1515332760.999010608]: waitForService: Service [/kinect2/load_nodelet] has not been advertised, waiting...
process[kinect2_points_xyzrgb_hd-6]: started with pid [22214]
[ INFO] [1515332761.176420516]: Initializing nodelet with 4 worker threads.
[ INFO] [1515332761.180794474]: waitForService: Service [/kinect2/load_nodelet] is now available.
[ INFO] [1515332761.343792683]: [Kinect2Bridge::initialize] parameter:
base_name: kinect2
sensor: default
fps_limit: -1
calib_path: /home/ubuntu/catkin_ws/src/iai_kinect2/kinect2_bridge/data/
use_png: false
jpeg_quality: 90
png_level: 1
depth_method: default
depth_device: -1
reg_method: default
reg_device: -1
max_depth: 12
min_depth: 0.1
queue_size: 5
bilateral_filter: true
edge_aware_filter: true
publish_tf: false
base_name_tf: kinect2
worker_threads: 4
libva info: VA-API version 0.35.0
libva info: va_getDriverName() returns 1
libva error: va_getDriverName() failed with operation failed,driver_name=i965
[Error] [VaapiRgbPacketProcessorImpl] vaInitialize(display, &major_ver, &minor_ver): operation failed
[Info] [Freenect2Impl] enumerating devices...
[Info] [Freenect2Impl] 11 usb devices connected
[Info] [Freenect2Impl] found valid Kinect v2 @3:5 with serial 003505162447
[Info] [Freenect2Impl] found 1 devices
[ INFO] [1515332761.769877058]: [Kinect2Bridge::initDevice] Kinect2 devices found:
[ INFO] [1515332761.770150754]: [Kinect2Bridge::initDevice] 0: 003505162447 (selected)
[Info] [Freenect2DeviceImpl] opening...
[Info] [Freenect2DeviceImpl] transfer pool sizes rgb: 2016384 ir: 60833792
[Info] [Freenect2DeviceImpl] opened
[ INFO] [1515332761.864747705]: [Kinect2Bridge::initDevice] starting kinect2
[Info] [Freenect2DeviceImpl] starting...
[Info] [Freenect2DeviceImpl] submitting rgb transfers...
[Info] [Freenect2DeviceImpl] submitting depth transfers...
[Info] [Freenect2DeviceImpl] started
[ INFO] [1515332762.243044272]: [Kinect2Bridge::initDevice] device serial: 003505162447
[ INFO] [1515332762.243260193]: [Kinect2Bridge::initDevice] device firmware: 4.0.3911.0
[Info] [Freenect2DeviceImpl] stopping...
[Info] [Freenect2DeviceImpl] canceling rgb transfers...
[Info] [Freenect2DeviceImpl] canceling depth transfers...
[Info] [Freenect2DeviceImpl] stopped
[FATAL] [1515332762.847370115]: Failed to load nodelet '/kinect2_points_xyzrgb_hdof typedepth_image_proc/point_cloud_xyzrgbto managerkinect2'
[FATAL] [1515332762.847987274]: Failed to load nodelet '/kinect2_points_xyzrgb_sdof typedepth_image_proc/point_cloud_xyzrgbto managerkinect2'
[FATAL] [1515332762.847991390]: Failed to load nodelet '/kinect2_points_xyzrgb_qhdof typedepth_image_proc/point_cloud_xyzrgbto managerkinect2'
[FATAL] [1515332762.848239275]: Failed to load nodelet '/kinect2_bridgeof typekinect2_bridge/kinect2_bridge_nodeletto managerkinect2'
[kinect2-2] process has died [pid 22186, exit code -11, cmd /opt/ros/indigo/lib/nodelet/nodelet manager __name:=kinect2 __log:=/home/ubuntu/.ros/log/181d7a3a-f3b1-11e7-af8a-ac7ba111b09d/kinect2-2.log].
log file: /home/ubuntu/.ros/log/181d7a3a-f3b1-11e7-af8a-ac7ba111b09d/kinect2-2.log
[kinect2_points_xyzrgb_qhd-5] process has died [pid 22195, exit code 255, cmd /opt/ros/indigo/lib/nodelet/nodelet load depth_image_proc/point_cloud_xyzrgb kinect2 rgb/camera_info:=kinect2/qhd/camera_info rgb/image_rect_color:=kinect2/qhd/image_color_rect depth_registered/image_rect:=kinect2/qhd/image_depth_rect depth_registered/points:=kinect2/qhd/points __name:=kinect2_points_xyzrgb_qhd __log:=/home/ubuntu/.ros/log/181d7a3a-f3b1-11e7-af8a-ac7ba111b09d/kinect2_points_xyzrgb_qhd-5.log].
log file: /home/ubuntu/.ros/log/181d7a3a-f3b1-11e7-af8a-ac7ba111b09d/kinect2_points_xyzrgb_qhd-5*.log
[kinect2_points_xyzrgb_hd-6] process has died [pid 22214, exit code 255, cmd /opt/ros/indigo/lib/nodelet/nodelet load depth_image_proc/point_cloud_xyzrgb kinect2 rgb/camera_info:=kinect2/hd/camera_info rgb/image_rect_color:=kinect2/hd/image_color_rect depth_registered/image_rect:=kinect2/hd/image_depth_rect depth_registered/points:=kinect2/hd/points __name:=kinect2_points_xyzrgb_hd __log:=/home/ubuntu/.ros/log/181d7a3a-f3b1-11e7-af8a-ac7ba111b09d/kinect2_points_xyzrgb_hd-6.log].
log file: /home/ubuntu/.ros/log/181d7a3a-f3b1-11e7-af8a-ac7ba111b09d/kinect2_points_xyzrgb_hd-6*.log
[kinect2_points_xyzrgb_qhd-5] restarting process
process[kinect2_points_xyzrgb_qhd-5]: started with pid [22372]
[kinect2_points_xyzrgb_hd-6] restarting process
process[kinect2_points_xyzrgb_hd-6]: started with pid [22373]
[kinect2_bridge-3] process has died [pid 22189, exit code 255, cmd /opt/ros/indigo/lib/nodelet/nodelet load kinect2_bridge/kinect2_bridge_nodelet kinect2 __name:=kinect2_bridge __log:=/home/ubuntu/.ros/log/181d7a3a-f3b1-11e7-af8a-ac7ba111b09d/kinect2_bridge-3.log].
log file: /home/ubuntu/.ros/log/181d7a3a-f3b1-11e7-af8a-ac7ba111b09d/kinect2_bridge-3*.log
[kinect2_points_xyzrgb_sd-4] process has died [pid 22192, exit code 255, cmd /opt/ros/indigo/lib/nodelet/nodelet load depth_image_proc/point_cloud_xyzrgb kinect2 rgb/camera_info:=kinect2/sd/camera_info rgb/image_rect_color:=kinect2/sd/image_color_rect depth_registered/image_rect:=kinect2/sd/image_depth_rect depth_registered/points:=kinect2/sd/points __name:=kinect2_points_xyzrgb_sd __log:=/home/ubuntu/.ros/log/181d7a3a-f3b1-11e7-af8a-ac7ba111b09d/kinect2_points_xyzrgb_sd-4.log].
log file: /home/ubuntu/.ros/log/181d7a3a-f3b1-11e7-af8a-ac7ba111b09d/kinect2_points_xyzrgb_sd-4*.log
[kinect2_bridge-3] restarting process
process[kinect2_bridge-3]: started with pid [22403]
[kinect2_points_xyzrgb_sd-4] restarting process
process[kinect2_points_xyzrgb_sd-4]: started with pid [22405]
[ INFO] [1515332763.185250667]: Loading nodelet /kinect2_bridge of type kinect2_bridge/kinect2_bridge_nodelet to manager kinect2 with the following remappings:
[ INFO] [1515332763.195492862]: waitForService: Service [/kinect2/load_nodelet] could not connect to host [ubuntu-Inspiron-5537:56834], waiting...
^C[kinect2_points_xyzrgb_hd-6] killing on exit
[kinect2_points_xyzrgb_qhd-5] killing on exit
[kinect2_points_xyzrgb_sd-4] killing on exit
[kinect2_bridge-3] killing on exit
[rosout-1] killing on exit
[master] killing on exit
shutting down processing monitor...
... shutting down processing monitor complete
done

Can you tell me how to solve this problem ,thanks。

I have succeed connected the ros2bot with its wifi . And it works well when controling remotely . However, after a restart of Kubuki, the wifi can nolonger be found ,neither the computer on kobuki nor my workstation