error note: Failed to load nodelet [/kinect2_points_xyzrgb_sd] of type [depth_image_proc/point_cloud

[ERROR] [1508463280.109066485]: Failed to load nodelet [/kinect2_points_xyzrgb_sd] of type [depth_image_proc/point_cloud_xyzrgb] even after refreshing the cache: According to the loaded plugin descriptions the class depth_image_proc/point_cloud_xyzrgb with base class type nodelet::Nodelet does not exist. Declared types are  kinect2_bridge/kinect2_bridge_nodelet nodelet_tutorial_math/Plus pcl/BAGReader pcl/BoundaryEstimation pcl/ConvexHull2D pcl/CropBox pcl/EuclideanClusterExtraction pcl/ExtractIndices pcl/ExtractPolygonalPrismData pcl/FPFHEstimation pcl/FPFHEstimationOMP pcl/MomentInvariantsEstimation pcl/MovingLeastSquares pcl/NodeletDEMUX pcl/NodeletMUX pcl/NormalEstimation pcl/NormalEstimationOMP pcl/NormalEstimationTBB pcl/PCDReader pcl/PCDWriter pcl/PFHEstimation pcl/PassThrough pcl/PointCloudConcatenateDataSynchronizer pcl/PointCloudConcatenateFieldsSynchronizer pcl/PrincipalCurvaturesEstimation pcl/ProjectInliers pcl/RadiusOutlierRemoval pcl/SACSegmentation pcl/SACSegmentationFromNormals pcl/SHOTEstimation pcl/SHOTEstimationOMP pcl/SegmentDifferences pcl/StatisticalOutlierRemoval pcl/VFHEstimation pcl/VoxelGrid
[ERROR] [1508463280.109130238]: The error before refreshing the cache was: According to the loaded plugin descriptions the class depth_image_proc/point_cloud_xyzrgb with base class type nodelet::Nodelet does not exist. Declared types are  kinect2_bridge/kinect2_bridge_nodelet nodelet_tutorial_math/Plus pcl/BAGReader pcl/BoundaryEstimation pcl/ConvexHull2D pcl/CropBox pcl/EuclideanClusterExtraction pcl/ExtractIndices pcl/ExtractPolygonalPrismData pcl/FPFHEstimation pcl/FPFHEstimationOMP pcl/MomentInvariantsEstimation pcl/MovingLeastSquares pcl/NodeletDEMUX pcl/NodeletMUX pcl/NormalEstimation pcl/NormalEstimationOMP pcl/NormalEstimationTBB pcl/PCDReader pcl/PCDWriter pcl/PFHEstimation pcl/PassThrough pcl/PointCloudConcatenateDataSynchronizer pcl/PointCloudConcatenateFieldsSynchronizer pcl/PrincipalCurvaturesEstimation pcl/ProjectInliers pcl/RadiusOutlierRemoval pcl/SACSegmentation pcl/SACSegmentationFromNormals pcl/SHOTEstimation pcl/SHOTEstimationOMP pcl/SegmentDifferences pcl/StatisticalOutlierRemoval pcl/VFHEstimation pcl/VoxelGrid
[FATAL] [1508463280.109267630]: Failed to load nodelet '/kinect2_points_xyzrgb_sd` of type `depth_image_proc/point_cloud_xyzrgb` to manager `kinect2'
[ERROR] [1508463280.128434158]: Failed to load nodelet [/kinect2_points_xyzrgb_hd] of type [depth_image_proc/point_cloud_xyzrgb] even after refreshing the cache: According to the loaded plugin descriptions the class depth_image_proc/point_cloud_xyzrgb with base class type nodelet::Nodelet does not exist. Declared types are  kinect2_bridge/kinect2_bridge_nodelet nodelet_tutorial_math/Plus pcl/BAGReader pcl/BoundaryEstimation pcl/ConvexHull2D pcl/CropBox pcl/EuclideanClusterExtraction pcl/ExtractIndices pcl/ExtractPolygonalPrismData pcl/FPFHEstimation pcl/FPFHEstimationOMP pcl/MomentInvariantsEstimation pcl/MovingLeastSquares pcl/NodeletDEMUX pcl/NodeletMUX pcl/NormalEstimation pcl/NormalEstimationOMP pcl/NormalEstimationTBB pcl/PCDReader pcl/PCDWriter pcl/PFHEstimation pcl/PassThrough pcl/PointCloudConcatenateDataSynchronizer pcl/PointCloudConcatenateFieldsSynchronizer pcl/PrincipalCurvaturesEstimation pcl/ProjectInliers pcl/RadiusOutlierRemoval pcl/SACSegmentation pcl/SACSegmentationFromNormals pcl/SHOTEstimation pcl/SHOTEstimationOMP pcl/SegmentDifferences pcl/StatisticalOutlierRemoval pcl/VFHEstimation pcl/VoxelGrid
[ERROR] [1508463280.128487222]: The error before refreshing the cache was: According to the loaded plugin descriptions the class depth_image_proc/point_cloud_xyzrgb with base class type nodelet::Nodelet does not exist. Declared types are  kinect2_bridge/kinect2_bridge_nodelet nodelet_tutorial_math/Plus pcl/BAGReader pcl/BoundaryEstimation pcl/ConvexHull2D pcl/CropBox pcl/EuclideanClusterExtraction pcl/ExtractIndices pcl/ExtractPolygonalPrismData pcl/FPFHEstimation pcl/FPFHEstimationOMP pcl/MomentInvariantsEstimation pcl/MovingLeastSquares pcl/NodeletDEMUX pcl/NodeletMUX pcl/NormalEstimation pcl/NormalEstimationOMP pcl/NormalEstimationTBB pcl/PCDReader pcl/PCDWriter pcl/PFHEstimation pcl/PassThrough pcl/PointCloudConcatenateDataSynchronizer pcl/PointCloudConcatenateFieldsSynchronizer pcl/PrincipalCurvaturesEstimation pcl/ProjectInliers pcl/RadiusOutlierRemoval pcl/SACSegmentation pcl/SACSegmentationFromNormals pcl/SHOTEstimation pcl/SHOTEstimationOMP pcl/SegmentDifferences pcl/StatisticalOutlierRemoval pcl/VFHEstimation pcl/VoxelGrid
[FATAL] [1508463280.128616687]: Failed to load nodelet '/kinect2_points_xyzrgb_hd` of type `depth_image_proc/point_cloud_xyzrgb` to manager `kinect2'
[kinect2_points_xyzrgb_qhd-4] process has died [pid 23762, exit code 255, cmd /opt/ros/kinetic/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/robot/.ros/log/f48aefb2-b535-11e7-b903-4ccc6ad62a39/kinect2_points_xyzrgb_qhd-4.log].

log file: /home/robot/.ros/log/f48aefb2-b535-11e7-b903-4ccc6ad62a39/kinect2_points_xyzrgb_qhd-4*.log

found the answer in the website.

Protonect works, iai_kinect2 repeatedly crashes and restarts. #132

https://github.com/code-iai/iai_kinect2/issues/132

same thing happened to me. installed image_pipleline and it worked.
https://github.com/ros-perception/image_pipeline

to install just:
git clone https://github.com/ros-perception/image_pipeline
rosdep install -r --from-paths .
catkin_make

BTW: to install it, you could just use sudo apt-get install ros-indigo-image-pipeline.