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ROBOTIS-GIT / turtlebot3_simulations

Simulations for TurtleBot3
http://turtlebot3.robotis.com/
Apache License 2.0
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Unable to find uri #194

Open jianqin-mok opened 2 years ago

jianqin-mok commented 2 years ago

I was trying out the TurtleBot3 Gazebo simulation in a VirtualBox, Ubuntu 16.04. Installations following emanual for PC setup + simulation on https://emanual.robotis.com/docs/en/platform/turtlebot3/simulation/

When I launch Gazebo my TurtleBot burger seems to fall to underground, then I checked my terminal and I think the root cause might be from these two errors.

Error [parser.cc:581] Unable to find uri[model://sun] Error [parser.cc:581] Unable to find uri[model://ground_plane]

I am not bothered by the sun but I think I atleast need the ground plane since the gravity in physics properties is not 0, and to move the robot around.

jianqin-mok commented 2 years ago

seems like the ~/.gazebo/models folder that suppose to have all the default gazebo model is empty. I solved mine by manual adding the gound_plane folder into ~/.gazebo/models.

brean commented 2 years ago

The Ubuntu 16.04 version is quite outdated, I suggest you switch to a newer version (we teached robotics with ROS melodic on Ubuntu 18.04 and noetic/Ubuntu 20.04 using the turtlebot3-simulation in gazebo in a virtual machine and it loaded the empty-world with the sun and the ground plane correctly)