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roswtf ERROR Communication with [/foo] raised an error

asked 2012-03-01 06:41:55 -0600

sciarp gravatar image

Hi there!

in the ROS architecture I developed messages are sent and received as expected but when I launch roswtf it tells me:

ERROR Communication with [/foo] raised an error

for every node in the graph. The last line says:

ERROR The following nodes should be connected but aren't:

with a list of every single connection in the graph.

As I said, the system works fine, "rosnode ping foo" works fine for every single node and if I send message from the console with rostopic pub I don't get any error.

Should I simply skip the errors and move on or is there a reasonable explanation? Thanks.

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I defined all messages in one package and then imported this package where needed. Can this explain the weird behavior?

sciarp gravatar image sciarp  ( 2012-03-15 09:54:40 -0600 )edit

2 Answers

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answered 2012-03-01 20:05:09 -0600

tfoote gravatar image

Are you running roswtf on a seperate machine such as your laptop? And are it's IP/Hostname settings correct? Network setup

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everything runs on the same machine. The problem is still there. rxgraph build the graph correctly and I am able to rosping each node. I don't get any error when I start roscore and messages are successfully sent and received.

sciarp gravatar image sciarp  ( 2012-03-05 05:48:27 -0600 )edit

Thanks for the link, even though it didn't help.

sciarp gravatar image sciarp  ( 2012-03-15 09:58:58 -0600 )edit

answered 2012-06-13 01:46:21 -0600

Vittorio88 gravatar image

I have the same problem. Everything works, but tf is giving me problems with dropped frames.

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Asked: 2012-03-01 06:41:55 -0600

Seen: 707 times

Last updated: Jun 13 '12