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Gazebo Simulation - Can't Find Node

asked 2018-07-09 10:32:06 -0500

AmateurHour gravatar image

Hello! I am attempting to run a simulation of a Turtlebot3 package on Ubuntu16.02 Gazebo. Everything seems to be going fine until the last .launch file (which of course is the one that I really want to see the behavior of), where I receive the error ERROR: cannot launch node of type [explore_lite/explore]: can't locate node [explore] in package [explore_lite] .

  • First, I launch roslaunch turtlebot3_gazebo turtlebot3_house.launch.
  • Second, I launch roslaunch turtlebot3_slam turtlebot3_slam.launch slam_methods:=gmapping since my other code is dependent on it. -Then roslaunch turtlebot3_navigation move_base.launch
  • Last, I launch the following which is where I get the previously mentioned error roslaunch explore_lite explore_costmap.launch .

I'd love to be able to use Gazebo effectively, but there's just not much documentation out there that shows how to actually test your own code - just how to bring up Gazebo. Anyway, thanks for reading!

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answered 2018-07-09 16:53:35 -0500

Hi @AmateurHour,

Have you installed the 'explore_lite' package? I installed and ran it and it ran without any problems.

sudo apt-get install ros-kinetic-explore-lite
roslaunch explore_lite explore.launch
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Yes... you ran it on Gazebo?

AmateurHour gravatar image AmateurHour  ( 2018-07-09 17:17:18 -0500 )edit

Yes! The execution screen is as follows.

Pyo gravatar image Pyo  ( 2018-07-09 17:22:04 -0500 )edit

I did a rosclean purge and rebooted my pc and that seems to have fixed it, thank you!!

AmateurHour gravatar image AmateurHour  ( 2018-07-09 17:23:33 -0500 )edit

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Asked: 2018-07-09 10:32:06 -0500

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Last updated: Jul 09 '18