Error launching DQN_stage3 and DQN_stage4

ROBOTIS-GIT / turtlebot3_machine_learning

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Error launching DQN_stage3 and DQN_stage4 #51

Open qwedaq opened 3 years ago

qwedaq commented 3 years ago

Hi I followed all the steps mentioned in the turtlebot3 manual and I get this error whenever I try to launch dqn_stage3 and dqn_stage4. I am noob at ro2, please help me fix this.

System details: Ubuntu 18.04 ROS2 dashing Screenshot from 2020-11-16 11-57-46

linzhuobin-fighter commented 3 years ago

hi, I met with this problem too. after I :

export GAZEBO_PLUGIN_PATH=$HOME/turtlebot3_ws/src/turtlebot3/turtlebot3_simulations/turtlebot3_gazebo/models/turtlebot3_dqn_world/obstacle_plugin/build:$GAZEBO_PLUGIN_PATH

problem solved. It looks like the path to the gazebo plugin(libobstacle1.so and libobstacle2.so) is missing and gazebo can't load them which causes this problem.