Waiting on transform from base_footprint to map to become available

asked 2014-08-04 21:51:39 -0500

vinod9910
61 ●10 ●13 ●18

Hello There!

I am having a hard time to get the Navigation Stack running on a robot (Turtlebot).

I am Using AMCL for Autonomous Navigation in the View of Rviz.

when i Launch

roslaunch turtlebot_navigation amcl_demo.launch map_file:=/home/sr1/Blk-S-Level-1.yaml

I get a warning

when i launch Rviz, roslaunch turtlebot_rviz_launchers view_navigation.launch

i dont see anything only black Background. under Global Setting i see Error, No tf.

sorry, haven't got karma>20, so cannot post images

Please, can someone help me out? If anything else is needed, I will gladly post it later.

Thanks in advance :)

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Now you have enough karma In Gloabl setting try to put /map

Moda ( 2014-08-05 04:29:14 -0500 )edit

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answered 2015-08-05 04:25:22 -0500

tal_eldar
33 ●2 ●4 ●5

I had the same problem because when i've saved my map I did it in the tmp directory (like in the tutorial) and then manually transfer it to other directory.

If you did it too i advise you to copy the files again to tmp load it , and save it in other location by: rosrun map_sever map_saver -f /...your directory goes here.../you_map_name

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answered 2014-08-05 21:48:35 -0500

vinod9910
61 ●10 ●13 ●18

in my Globlal setting i have set is as /Map

i have the photo below of the probem.

image description

Thanks in advance :)

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I think you have two topic with the same name map. Try to check it

Moda ( 2014-08-06 02:31:19 -0500 )edit

What is your log for amcl saying? Did it load the map correctly? Can you add the param output= "screen" to the <node pkg="amcl" output="screen"/> (out can change screen to log and post the log if you want too

l0g1x ( 2014-08-06 11:41:19 -0500 )edit

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Waiting on transform from base_footprint to map to become available

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