问题1 找不到JointTrajectoryController，报错如下： Could not load controller, JointTrajectoryController does not exist 解决： 进行安装： sudo apt-get install ros*controller* 问题2 报错： process has died [pid 20978, exit code 255, cmd /opt/ros/melodic/lib/gazebo_ros/gzserver -e ode /home/aditya/catkin_ws/src/my_simulations/world/empty_world.world __name:=gazebo __log:= 解决： killall gzserver killall gzclient 问题3 报错： Error “context mismatch in svga_sampler_view_destroy” running GUI programs on Ubuntu in a VM 解决： $ […]