/cooper_1/scan not ready yet Chapter 2

Course Support Python Basics For Robotics
1

Hi,

In Chapter 2 of The Construct, I created a RobotControl class and a script pyscript1.py to test my Cooper robot.

When I run the script, I get the following repeated error:

[INFO] [1768386594.882140]: Robot Cooper…
[INFO] [1768386594.883327]: Checking Laser…
[ERROR] [1768386595.890448]: Current /cooper_1/scan not ready yet, retrying for getting scan
[ERROR] [1768386596.893438]: Current /cooper_1/scan not ready yet, retrying for getting scan
[ERROR] [1768386597.897136]: Current /cooper_1/scan not ready yet, retrying for getting scan

I checked with rostopic list and /cooper_1/scan exists in the simulation.

2

Could you please share a full screenshot of your screen? That would help us to provide a better diagnosis…

Here, I suspect that your simulation is not ready. Perhaps you have some red dots in the top-left corner of the simulation screen.

3

I found a solution: I changed networks and it worked. Thanks for the help!

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4

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