gazebo warning, client node problem [closed]
hello. i have a problem with my client node. so i roslaunch turtlebot in an empty world firts. and after, when i rosrun my client node i get no result, instead i get the following warning several times:
[ WARN] : Gazebo ROS Create plugin. NaN in d1. Step time: 0.03. WD: 0.07. Velocity: -nan
[ WARN] : Gazebo ROS Create plugin. NaN in d2. Step time: 0.03. WD: 0.07. Velocity: -nan
can anyone tell me what is this about? any ideas how to fix it?