[Solved] Error during launching tutorial_9

1

Hi,

When I try to launch tutorial_9 on gazebo, ROS shows an error.

ERROR: cannot launch node of type [depthimage_to_laserscan/depthimage_to_laserscan]: depthimage_to_laserscan
ROS path [0]=/opt/ros/kinetic/share/ros
ROS path [1]=/home/husarion/ros_workspace/src
ROS path [2]=/opt/ros/kinetic/share

Everything seems to look ok, and simulation starts, and ROSbot moves. What is this error, and if it can cause problems?

Regards,
Quarkpol

2

Hello Quarkpol,

Error means that there is missing package depthimage_to_laserscan.
In tutorial, this package is used to mark which obstacles were already checked by camera. Without it, robot may fail with object searching.

You can install it with:

sudo apt install ros-kinetic-depthimage-to-laserscan

Regards,
Łukasz

3

Thank you, it works.