Turtlebot Starts Path But Stops

asked 2016-10-19 21:57:54 -0500

CodeMade gravatar image

updated 2016-10-19 23:07:09 -0500

My Turtlebot is able to localize and then start navigating to a desired point. But a second after it starts it gets lost and I start getting erros like this: Could not get robot pose, cancelling reconfiguration Extrapolation Error looking up robot pose: Lookup would require extrapolation at time 1476932209.270778684, but only time 1476932209.576979391 is in the buffer, when looking up transform from frame to frame I synced the clocks of my 2 machines. Any idea what the problem could be?

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I synced the clocks again and AIML nav was working temporarily. But then the clocks stopped syncing again.

CodeMade gravatar image CodeMade  ( 2016-10-19 23:04:15 -0500 )edit

This seems to have been solved by syncing the clock on my turtlebot's computer with the clock on my workstation. Syncing them both to a external clock did not work properly.

CodeMade gravatar image CodeMade  ( 2016-10-20 12:10:39 -0500 )edit