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2017-03-24 05:13:58 -0500 asked a question Compilation error with kinetic

error: ‘sensor_msgs::PointCloud {aka struct sensor_msgs::PointCloud_<std::allocator<void> >}’ has no member named ‘get_points_size’

cout << "The first segment of the first track has " << cloud.get_points_size() << " points." << endl;

Could anyone tell me,what could i change? Because i'm getting error during compilation. Thanks!

2017-03-08 04:24:28 -0500 commented answer How can i convert a .bag file to .pcd

I tried this and i'm getting this message:

Unable to contact my own server at [ http://IP_OF_TURTLEBOT:37529/ ].

This usually means that the network is not configured properly.

A common cause is that the machine cannot ping itself. Please check

for errors by running: ping ip_of_turtlebot

2017-03-07 11:05:57 -0500 asked a question How can i convert a .bag file to .pcd

i used ubuntu 16 and wrote in terminal: rosrun pcl_ros bag_to_pcd <input_file.bag> <topic> <output_directory>, but i'm getting this error:

[ERROR] [1488830410.790465733]: [registerPublisher] Failed to contact master at [localhost:11311].  Retrying...

Furthermore i tried to change localhost with my ip with command: exportROS_MASTER_URI=http://X.X.X.X:11311/, but nothing!

Please help,i have no idea how to achieve this conversion!

2017-03-06 14:26:56 -0500 asked a question How can i convert a .bag file to .pcd?

i used ubuntu 16 and wrote in terminal:

rosrun pcl_ros bag_to_pcd <input_file.bag> <topic> <output_directory>

but i'm getting this error:

[ERROR] [1488830410.790465733]: [registerPublisher] Failed to contact master at [localhost:11311].  Retrying...

Furthermore i tried to change localhost with my ip with command:

export ROS_MASTER_URI=http://X.X.X.X:11311/

but nothing!

Please help,i have no idea how to achieve this conversion!