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problem with playing and displaying a bag file in rviz

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I have a bag file containing the path my robot traversed using a laser sensor. This is the information of the bag file:> labcoro@Samsung:~/catkin_ws_youbot$ rosbag info planner_path1.bag path: planner_path1.bag version: 2.0 duration: 0.0s start: Dec 15 2016 12:06:09.53 (1481821569.53) end: Dec 15 2016 12:06:09.53 (1481821569.53) size: 48.4 KB messages: 2 compression: none [1/1 chunks] types: nav_msgs/Path [6227e2b7e9cce15051f669a5e197bbf7] topics: move_base_node/NavfnROS/plan 2 msgs : nav_msgs/Path I need to display the save data again in rviz but I do not know what the Fixed Frame of the bag is? I run these command sequentially: rosparam set use_sim_time true rosbag play --clock planner_path1.bag rosrun rviz rviz another problem is that the bag dose not play and it gives this message: [ INFO] [1484952163.366887588]: Opening planner_path1.bag Waiting 0.2 seconds after advertising topics... done. Hit space to toggle paused, or 's' to step. Any suggestion? Thanks.

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