[gazebo_gui-3]/[gazebo_gui-2] process has died [pid 19376, exit code 134

[gazebo_gui-3]process has died [pid 19376, exit code 134 [gazebo_gui-２]process has died [pid 19376, exit code 134

gazobe运行过程中出现如图错误，进程被杀死
解决：killall gzserver

参考：https://blog.csdn.net/nihaohaoxin/article/details/90750182