gzserver problem > dont open
Hello, I'm using gazebo-1.9.6 and Ros-Hydro and when I try to run gzserver I've got this message error:
`Exception [Master.cc:50] Unable to start server[Address already in use]. There is probably another Gazebo process running.
Exception [Master.cc:50] Unable to start server[Address already in use]. There is probably another Gazebo process running.`
Anyone can help me with that?
Tkss