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No /clock topic being published when running map_server map_saver

Hello,

I have been following the ROS gmapping tutorial, How to Build a Map Using Logged Data, and have run into a problem where the sim clock is not being published when I try to save a map from a bag file.

The /Clock topic is not being published. Isn't mapserver mapsaver supposed to publish the /clock topic?

From roswtf:

WARNING The following node subscriptions are unconnected: * /slamgmapping: * /tfstatic * /clock * /scan * /rostopic57551528131980494: * /clock * /map_saver: * /clock

WARNING No tf messages

Found 1 error(s).

ERROR /use_simtime is set but no publisher of /clock is present

Asked by Raisintoe on 2018-06-04 12:52:08 UTC

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