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Why "Couldn't find an AF_INET address for [TTBA]" always come out?

asked 2014-04-21 22:09:54 -0600

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Hi, I am trying to learn and run multimaster in ROCON with two turtlebots. I launched amcl in two turtlebots, and try to flip amcl_pose to a server computer TTBA. But several lines with "Couldn't find an AF_INET address for [TTBA]" comes out in some terminals of turtelbots such as the termianl running amcl_demo.launch and the terminal flipping amcl_pose topic to sever TTBA. I thought it was the wireless network problem. But I did ping from turtlebot two server TTBA. The results was normal.

So has anyone met this problem, or it is just a transient break of wireless link?

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I also have the same problem. I have one machine running roscore linked via ethernet to a router. A laptop connects to that router via wifi, and has ROS_MASTER_URI defined. Both machines can ping each other. Laptop publish on /chatter, the other one sees it but can't echo and display that same error

Cyril Jourdan gravatar image Cyril Jourdan  ( 2014-10-20 11:28:49 -0600 )edit

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answered 2014-10-22 03:13:56 -0600

Hi, I have found the solution on this post :

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Asked: 2014-04-21 22:09:54 -0600

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Last updated: Oct 22 '14