Gazebo does not resolve model paths correctly

ArduCopter
,
1

Hello everyone!

I encountered an issue while running Gazebo. The paths to the models are not being properly resolved. Here’s my nano ~/.bashrc file:

bash

export GZ_SIM_SYSTEM_PLUGIN_PATH=$HOME/gz_ws/src/ardupilot_gazebo/build:${GZ_SIM_SYSTEM_PLUGIN_PATH}

export PATH=/opt/gcc-arm-none-eabi-10-2020-q4-major/bin:$PATH
export PATH=/home/aleksey.kravtsov/ardupilot/Tools/autotest:$PATH
export PATH=/usr/lib/ccache:$PATH

export GAZEBO_MODEL_PATH=$HOME/gz_ws/src/ardupilot_gazebo/models
export GZ_SIM_RESOURCE_PATH=$HOME/gz_ws/src/ardupilot_gazebo/models:$HOME/gz_ws/src/ardupilot_gazebo/worlds:$GZ>

And here’s the error I’m getting:

less

[GUI] [Err] [SceneManager.cc:426] Failed to load geometry for visual: base_visual
[GUI] [Err] [SystemPaths.cc:534] File [/home/aleksey.kravtsov/ardupilot_gazebo/models/gimbal_small_3d/meshes/yaw_arm.dae] resolved to path [/home/aleksey.kravtsov/ardupilot_gazebo/models/gimbal_small_3d/meshes/yaw_arm.dae] but the path does not exist
[GUI] [Err] [MeshManager.cc:211] Unable to find file [/home/aleksey.kravtsov/ardupilot_gazebo/models/gimbal_small_3d/meshes/yaw_arm.dae]
[GUI] [Wrn] [Util.cc:859] Failed to load mesh from [/home/aleksey.kravtsov/ardupilot_gazebo/models/gimbal_small_3d/meshes/yaw_arm.dae].

I don’t understand why the path to the world file and plugins is resolved correctly, but the paths to the models are not.

2

This env variable is for Gazebo classic and is not required:

export GAZEBO_MODEL_PATH=$HOME/gz_ws/src/ardupilot_gazebo/models

Because of command line tool name conflicts (gz), having both Gazebo Classic (gazebo) and Gazebo Harmonic (gz-sim) installed concurrently is not supported.

This variable looks like it contains a typo at the end of the line (or maybe a miscopy?)

export GZ_SIM_RESOURCE_PATH=$HOME/gz_ws/src/ardupilot_gazebo/models:$HOME/gz_ws/src/ardupilot_gazebo/worlds:$GZ>

Does the simulation find the plugins and models if the current contents of GZ_SIM_SYSTEM_PLUGIN_PATH and GZ_SIM_RESOURCE_PATH are not concatenated?