[Error] VMware / Ubuntu 18.04 / ROS Melodic / gazebo died

1. VMware / Ubuntu 18.04 / ROS Melodic / gazebo died   

 

2. Error screen

3. Trial for Error 

 

Try 1. Update 

$sudo apt upgrade  / it was not answer. 

 

Try 2. Install gazebo with official way. 

github.com/osrf/gazebo_tutorials/blob/master/install_ubuntu/tutorial_9-0.md

osrf/gazebo_tutorials

Try 3. SOLVED!!! 

$ sudo apt-get --reinstall install libignition-math4* 

$ sudo apt upgrade