Unit 6 Cannot spawn two robots


At the end of Unit 6 when the idea is spawning two robots, it didnt work. These errors come up:

And of course, the cmd_vel and odom topics cannot be accessed for each robot to control them.

Any ideas?

Please help.


Finally it worked but the xacro:include tag is not working. If I put all the gazebo elements in the main file (box_bot.xacro) it works, but if I use the include tag, the simulation not work, the cmd_vel and odom topics are not available.

What is wrong with this strange behavior of xacro include tag?

any ideas?


Let us check, to give you a complete answer ;).

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