Error in Exercise 4.4


When I try to code the exercise 4.4 of the ROS Navigation course, this error came out:

Any ideas? Thanks in advance.

Hi there!

So this error is thrown by “pylint” which is just a python linter package. It helps you find the errors statically as you go along (similar to C++) but is not always correct since it looks into your python environment to identify the package name (in this case move_base_msgs).

As long as you are sure that this package exists and the code works when you use roslaunch/rosrun, you can ignore this error. It also sometimes takes pylint a little while for checking on new packages.


I’ll do that…


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