Grading bot fails in Section3 of ROS2 Basics in 5 days (Python)

Course Support ROS2 Basics in 5 Days (Python)
1

The grading bot keeps giving me the following error:
Feedback from the last successful autocorrection:

:heavy_check_mark: [18:06:20] [info] Setting up ROS2 environment (mark: 0)

:heavy_check_mark: [18:06:21] [info] ROS2 environment setup is okay (mark: 0)

:heavy_check_mark: [18:06:21] [assess] topics_quiz package found (mark: 1.0)

:heavy_check_mark: [18:06:26] [info] compiling package topics_quiz… (mark: 1.0)

:heavy_check_mark: [18:06:30] [assess] topics_quiz package compiled successfully (mark: 3.0)

:heavy_check_mark: [18:06:30] [info] Seeing if the package can be launched… (mark: 3.0)

:heavy_check_mark: [18:06:45] [assess] Can launch topics_quiz package successfully (mark: 4.0)

:heavy_check_mark: [18:06:56] [info] Checking that the odometry data is engaged… (mark: 4.0)

:heavy_multiplication_x: [18:07:17] [assess] Not subscribed to /odom. Let’s get this sorted first.
Please check:

  • Did you create a subscriber correctly to the topic /odom in your source code?
  • Did you use the right node name? It should be topics_quiz_node (mark: 4.0)

I have subscribed correctly to ‘odom’. I am using the right node name. And my code performs correctly. I don’t understand why this is happening.

2

Hi @ranka.mahi,

I see that you got 10 on your Topics Quiz, so I suppose you managed to fix it, right?

Could you tell us what exactly was the problem and how you solved it?

3

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