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ROS Q&A | How to solve the error “ImportError : No module named xxxx.msg”

by Ruben Alves | Oct 6, 2017 | ROS Q&A

The question that we solved today can be found on the following link: https://answers.ros.org/question/271620/importerror-no-module-named-xxxxmsg/ ROS Question: I migrate an installation from one computer to another, switching from Ubuntu 12.04 to 16.04 and from...

ROS Q&A | How to change Gravity in Gazebo with Python

by Miguel Angel | Oct 5, 2017 | ROS Q&A

This is a video answer to the question formulated in GAzeboAnswers: http://answers.gazebosim.org/question/17157/how-to-change-gravity-in-python-codequestions-on-reseting-the-model/

ROS Q&A | How to launch a node using a ROS program

by Marco Arruda | Oct 4, 2017 | ROS Q&A

In this video, we show how you can launch a node using another node. That's a way of automatizing some tasks, instead of starting everything manually, you can program it!

ROS Q&A | Showing my own URDF model in Gazebo

by Ricardo Tellez | Oct 3, 2017 | ROS Q&A

This is a video answer to the question formulated in ROSAnswers about not being able to spawn his own URDF robot model in the simulator: https://answers.ros.org/question/271978/error-while-launching-robot-model/

ROS Q&A | How to know if new message is different from previous message in a subscribed rostopic?

by Ruben Alves | Oct 2, 2017 | ROS Q&A

Hi all, when working with ROS, on almost 99% of the cases we use ROS Topics. There are some scenarios where we only can "do something" when a message published on a topic is different from a previous message. In this video we show how to solve this by answering...