[gazebo-2] process has died [pid 28302, exit code 134, cmd /opt/ros/kinetic/lib/gazebo_ros/gzserver -e ode /home/zsl/catkin_ws/src/turtlebot3_simulations/turtlebot3_gazebo/worlds/dakongjian.word __name:=gazebo __log:=/home/zsl/.ros/log/bbe6d484-b27c-11ec-bfad-5065f31ba3f2/gazebo-2.log].
log file: /home/zsl/.ros/log/bbe6d484-b27c-11ec-bfad-5065f31ba3f2/gazebo-2*.lo

解决办法：

.world文件 地址直接复制到launch文件