[ros-users] Problems in running navigation stack

[Eitan Marder-Eppstein]

Hitesh,

If you're trying to run the navigation stack on your own robot, I'd suggest
reading the following tutorial first,
http://www.ros.org/wiki/navigation/Tutorials/RobotSetup/, as it will explain
how the pieces of the navigation stack work and how you'll need to configure
your robot.

>From the errors you listed, it looks like your robot may not be publishing
odometry information to the navigation stack. Also, amcl will not work
without a static map... so that's expected.

Hopefully, the tutorial will help, feel free to post again if you have other
questions,

Eitan

On Tue, Apr 13, 2010 at 5:49 AM, hitesh dhiman <hitesh.dhiman.1988 at gmail.com
> wrote:

> Hi all,
> I've been trying to run the navigation stack. However, upon running
> move_base.launch, i get the following message:
>
> [ WARN] 1271162502.543875000: Costmap2DROS transform timeout. Current time:
> 1271162502.5438, global_pose stamp: 1271162501.8677, tolerance: 0.3000
>
> I tried changing the tolerance value to 1. move_base.launch starts with the
> following:
> [ INFO] 1271162733.968657000: Subscribed to Topics: laser_scan_sensor
> [ INFO] 1271162734.066727000: MAP SIZE: 199, 199
>
> A second later, i start getting these messages:
>
> [ WARN] 1271162749.245438000: MessageNotifier [topic=scan, target=/odom
> /base_laser ]: Dropped 100.00% of messages so far. Please turn the
> [ros.costmap_2d.message_notifier] rosconsole logger to DEBUG for more
> information.
>
> rxconsole gives the following:
> Request for map failed, trying again...  Warn /amcl
> This could be because i'm not using any static map. Even so, move_base is
> not publishing any messages out.
>
> Any help would be appreciated. I'm not able to figure out where the problem
> is.
>
> --
> Regards,
> Hitesh Dhiman
> Electrical Engineering
> National University of Singapore
>
>
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