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i am following one of the tutorials on Roswiki of frontier_exploration when i launch the global.launch file i receive a ros msg saying "Please use the 'Point' tool in Rviz to select an exporation boundary" followed by a warning msg as "Timed out waiting for transform from base_link to map to become available before running costmap, tf error: . canTransform returned after 0.101399 timeout was 0.1."

but when i open the Rviz and try to use the points tool i am unable to select the points, it also shows that there is no tf data.

i am unable to make it work plz help me i really need help


Originally posted by naqi.nick on ROS Answers with karma: 62 on 2016-03-01

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the problem was with the launch files i was launching the global_map launch file which waits for a map from map_server then i used the no_global_map launch file edited its yaml syntax to the map and sensor setting which i required and it started working


Originally posted by naqi.nick with karma: 62 on 2016-04-09

This answer was ACCEPTED on the original site

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