[gazebo-2] process has died [pid 9503, exit code 139, cmd /opt/ros/melodic/lib/gazebo_ros/gzserver -e ode /home/sch/catkin_ws/src/ADRC/vfly/worlds/basic.world __name:=gazebo __log:=/home/sch/.ros/log/c006ca08-ad77-11ea-aeb3-04d9f5d245b0/gazebo-2.log].
log file: /home/sch/.ros/log/c006ca08-ad77-11ea-aeb3-04d9f5d245b0/gazebo-2*.log
在运行roslaunch vfly mav.launch mav_name:=vfly type:=x报错如上，我更换了world也是一样报错～
我是ubuntu18.04