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2020-11-19 11:36:00 -0500 | answered a question | question about ros2 bag play The option has been implemented in April 2020 (https://github.com/ros2/rosbag2/commit/12c0cc6d783970d2e7570cc5d25d2b4969 |
2015-10-05 12:02:59 -0500 | commented answer | subscriber's callback never called in c++, using morse Looks like a compiler error. Have you tried re/installing Catkin? |
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2014-05-22 23:33:08 -0500 | commented answer | ImportError: No module named yaml If you've yaml present in more than a folder, you've to figure out which is the version you've to use (related to the version of python), and then add that folder in the PYTHONPATH. At least is what I did to solve the problem. |
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2014-05-16 05:52:07 -0500 | commented question | subscriber's callback never called in c++, using morse Finally I found the answer. Looking at morse initialization, there was the following message: So I changed the callback method: and don't forget to include: |
2014-05-16 05:29:13 -0500 | asked a question | subscriber's callback never called in c++, using morse Hi, I am running a simulation with Morse. tryin to get data from the robot with a C++ program using ROS. The simulation is simple: a Quadrotor publishes its pose on a topic, and receives a navigation waypoint. The Morse file is: In the C++ program, the chatterCallback(...) is never called, while it should print the position of the Quadrorotor: While calling roswtf, I get the following error: The weird thing is that all the nodes are running on the same computer. No network connection problems... in theory. Finally, I get the desired data when running on another terminal: Any advice? Thanks |
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2013-12-19 01:05:12 -0500 | answered a question | rosinstall on ubuntu 11.04 I found an alternative solution. The problem here is that (Python3) yaml is called from a Python2.7 script, with evident incompatibilities. I thus installed yaml in its Python2.7 version: and then added the path where it has been installed in PYTHONPATH, which in my case was something like: |
2013-12-12 01:50:16 -0500 | commented answer | having problems to uninstall in /opt/ros are left the directories: dependencies fuerte |