Moveit generated file for gazebo not working

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Hi, I generated a file using moveit to work in the gazebo simulator, but when I run the file I only get one part of the robot, I was wandering if I need to configure something to make that file work, my command to launch the file was "roslaunch package_name gazebo.launch". This gazebo.launch file was automatically generated by the movit framework. Did I do something wrong? How can I launch this file and see the whole robot?

The error I get from the terminal is " This robot has a joint named "spine_1" which is not in the gazebo model."