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Host System information\r\n\r\n- **OS Platform and Distribution**:\r\nUbuntu~16.04.4\r\n- **Apollo installed from (source or binary)**:\r\ngit clone https://github.com/ApolloAuto/apollo.git\r\n- **Apollo version (1.0, 1.5, 2.0, 2.5, 3.0)**:\r\ngit clone https://github.com/ApolloAuto/apollo.git\r\n\r\n### Steps to reproduce the issue:\r\n- **Please use bullet points and include as much details as possible**:\r\n1. follow \"Run Offline Demo\" steps in https://github.com/ApolloAuto/apollo/tree/master/docs/demo_guide\r\n2. i have successfully done  \"Setup steps 1 ~ 4 in Run Offline Demo\"\r\n    PS: For Step1 and Step2, it needs sudo to use docker as following: is there problem here ?\r\n               sudo bash docker/scripts/dev_start.sh\r\n               sudo bash docker/scripts/dev_into.sh\r\n3. For Step5 \"Now you can play the rosbag:\" ,  i need to \"source /home/tmp/ros/setup.bash\" in order to have rosbag work, then run the command \"rosbag play demo_2.0.bag --loop\" to enable rosbag to keep playing the bag in a loop playback mode as following picture\r\n![image](https://user-images.githubusercontent.com/6805661/50155469-17c5bc80-0307-11e9-978f-eef618e2ad84.png)\r\n    PS: it is found apollo docker ubuntu version is 16.04 and ROS version is indigo, is there compatibility issue here (ROS indigo only support ubuntu 14.04)  ?\r\n![image](https://user-images.githubusercontent.com/6805661/50195377-be4aa580-0379-11e9-8f48-31953a5a3439.png)\r\n\r\n4. The issue is that the chrome open \"localhost:8888\" and always show \"Please send car initial position and map data\" even rosbag running in the background in 3.\r\n![image](https://user-images.githubusercontent.com/6805661/50155434-01b7fc00-0307-11e9-8263-c8871a9d8b2c.png)\r\n    PS: after \"cat /apollo/data/log/dreamview.INFO\", it seems there is no data ready even i already have rosbag play in the same time as description in 3\r\n![image](https://user-images.githubusercontent.com/6805661/50196621-cbb65e80-037e-11e9-8fc8-ead376ee1ba1.png)\r\n\r\n\r\n**Could anyone give some suggestions ? thanks a lot**"},"comment":{"url":"https://api.github.com/repos/ApolloAuto/apollo/issues/comments/449031004","html_url":"https://github.com/ApolloAuto/apollo/issues/6187#issuecomment-449031004","issue_url":"https://api.github.com/repos/ApolloAuto/apollo/issues/6187","id":449031004,"node_id":"MDEyOklzc3VlQ29tbWVudDQ0OTAzMTAwNA==","user":{"login":"zwang92","id":6805661,"node_id":"MDQ6VXNlcjY4MDU2NjE=","avatar_url":"https://avatars3.githubusercontent.com/u/6805661?v=4","gravatar_id":"","url":"https://api.github.com/users/zwang92","html_url":"https://github.com/zwang92","followers_url":"https://api.github.com/users/zwang92/followers","following_url":"https://api.github.com/users/zwang92/following{/other_user}","gists_url":"https://api.github.com/users/zwang92/gists{/gist_id}","starred_url":"https://api.github.com/users/zwang92/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/zwang92/subscriptions","organizations_url":"https://api.github.com/users/zwang92/orgs","repos_url":"https://api.github.com/users/zwang92/repos","events_url":"https://api.github.com/users/zwang92/events{/privacy}","received_events_url":"https://api.github.com/users/zwang92/received_events","type":"User","site_admin":false},"created_at":"2018-12-20T15:13:57Z","updated_at":"2018-12-20T15:13:57Z","author_association":"NONE","body":"I think the direct cause of the issue6187 is fail to start some modules as following picture, which cause corresponding writer not available to publish data to reader in above comments, ex: planning_writer_ not available due to fail of /apollo/modules/planning/dag/planning_navi.dag\r\n![image](https://user-images.githubusercontent.com/6805661/50292593-7e380f80-04ac-11e9-985a-43b32022b37c.png)"}}
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