配置MoveIT!时出现REQUIRED process [moveit_setup_assistant-2] has died!问题

使用ROS中MoveIt!配置机械手臂时，出现了一下错误：

REQUIRED process [moveit_setup_assistant-1] has died!

process has died [pid 7911, exit code -7, cmd /opt/ros/indigo/lib/moveit_setup_assistant/moveit_setup_assistant __name:=moveit_setup_assistant __log:=/home/firefly/.ros/log/1a88d932-0f9f-11e7-8318-e076d0f09df7/moveit_setup_assistant-1.log].log file: /home/firefly/.ros/log/1a88d932-0f9f-11e7-8318-e076d0f09df7/moveit_setup_assistant-1*.logInitiating shutdown!

在网上找了好久，也没有找见解决方法，于是我就使用了最笨的方法，卸载ros，重新安装ros与MoveIt!之后，问题解决了。

卸载所有ros有关的软件，我是kinetic版本
sudo apt autoremove ros-kinetic-*

然后重新安装ros，参考 http://blog.youkuaiyun.com/weicao1990/article/details/52575314
然后安装moveit 

sudo apt-get install ros-kinetic-moveit