Important troubleshooting tips in ROS
We will look at some of the common issues when working with ROS as well as tips to solve them.
One of the ROS inbuilt tools to find issues in a ROS system is roswtf. roswtf, which checks issues in following areas of ROS:
- Environment variables and configuration issues
- It can scan a package or meta-package to report potential issues
- It can check a launch file for its potential issues
- It can check system issues and online graph issues
- It can report warnings and errors—warnings can be avoided but are not necessary, errors should be addressed
Usage of roswtf
We can check the issues inside a ROS package by simply entering the package and entering roswtf. We can also check issues in the launch file using the following command:
$ roswtf <file_name>.launch
We may get a report if there are issues associated with the package.
Figure 16: roswtf command output for a ROS package
The wiki page of roswtf is available at http://wiki.ros.org/roswtf.
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