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2016-02-28 01:13:47 -0500 | commented answer | ar_track_alvar crashes camera_nodelet_manager Martijs,did you ever get this resolved? I am running Indigo and face the same problem. After 5 minutes of working correctly the camera_nodelet_manager crashes (Error in `/opt/ros/indigo/lib/nodelet/nodelet': malloc(): memory corruption). |
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2014-05-07 16:30:19 -0500 | answered a question | Rosserial - unpack requires a string argument of length 2 Found a solution: In the 'Arduino IDE Setup' tutorial were it states 'git clone https://github.com/ros-drivers/rosser... add '-b groovy-devel'. So that line should read: 'git clone https://github.com/ros-drivers/rosserial -b groovy-devel' This will check out the code from the goovy-delep branch. The rest stays the same. Maybe, this is worthwhile adding to this tutorial for us less experienced. |
2014-05-05 12:43:52 -0500 | asked a question | Rosserial - unpack requires a string argument of length 2 Hi There, After following the 'Arduino IDE Setup' tutorial (Installing from Source onto the ROS workstation in Groovy) and the 'Hello world' example the following messages were generated: [INFO] [WallTime: 1399293681.961019] ROS Serial Python Node [INFO] [WallTime: 1399293681.972199] Connecting to /dev/ttyUSB0 at 57600 baud [ERROR] [WallTime: 1399293684.083353] Creation of publisher failed: unpack requires a string argument of length 2 [ERROR] [WallTime: 1399293699.088810] Lost sync with device, restarting... Is there a mismatch (incompatible) of software versions? I am using Ubuntu 12.04 LTS, rosversion roscpp 1.9.50 and a Arduino Uno Regards. |