As it is essential to get octomap for navigation and path planning but I am not able to do that I have followed the answer also but it isnt helping. https://answers.ros.org/question/9712...

There is also error while opening pcd files from the rgbdslam_v2 GUI. The error of opening of pcd file is this:

[ERROR] [1506803049.883978384]: Cloud has "flat" dimensions: 1 x 14585991

I am using roslaunch rgbdslam rgbdslam.launch

and then play my rosbag file and the GUI is building 3D map but not octomap. Once the process is over I try to save the octomap but the only output I am getting is this(this is map.ot file generated from save octomap):

Octomap OcTree file

(feel free to add / change comments, but leave the first line as it is!)

# id ColorOcTree size 0 res 0.05 data

I am noob at slam but I know bit of ros I have gone through every answer on the ros answers but it isnt helping me can anyone help me with this I would be pleased and can you tell me how to view octomap i have installed octavis.