1.问题：装完ros ，apt-get 装完turtlebot 包之后，运行roslaunch turtlebot_bringup minimal.launch。出现这个错误
[robot_state_publisher-1] process has died [pid 4686, exit code -11, cmd /opt/ros/indigo/lib/robot_state_publisher/robot_state_publisher __name:=robot_state_publisher __log:=/home/turtlebot/.ros/log/afe716d4-aa3b-11e6-838c-74c63b5b546f/robot_state_publisher-1.log].
log file: /home/turtlebot/.ros/log/afe716d4-aa3b-11e6-838c-74c63b5b546f/robot_state_publisher-1*.log
问题分析：这个包是用来处理机器人坐标系 还有其他物体坐标系的包。现在的停止，导致后续的map构建無法實現。
解决办法：仔细阅读 turtlebot 安装步骤。重新加入新的步骤，