ROS in 5 days - unit 4 - Quizz correction is stuck

[gabriel.ballet]

Hello,
The quizz correction is stuck at move_bb8_in_square_custom service found (mark: 6.0) could you please help?
Thanks
Gabriel

[bayodesegun]

Hi Gabriel,

Welcome to the Community!

Could you please check these and let us know?

• Make sure there’s no program running in any of the terminals before starting the correction.
• Double-check that you have written the quiz as specified - with the specified names.
• Ensure you don’t have an infinite loop within your code.

[gabriel.ballet]

Hi Bayodesegun,

@bayodesegun

Make sure there’s no program running in any of the terminals before starting the correction.

No program was running

@bayodesegun

Double-check that you have written the quiz as specified - with the specified names.

Yes I did

@bayodesegun

Ensure you don’t have an infinite loop within your code.

I played the code severall times and it terminated successfully after the big square

[bayodesegun]

Okay, thanks for the update. Could you please check if this is the case with you also (launching client ans service in same launch file)?

Service quiz-review service quiz takes a long time

Hi @donoso.bravo.7, according to our investigation, the quiz correction gets stuck when instead of launching only the service client on call_bb8_move_in_square_custom_service_server.launch , the server is also launched. Bear in mind that we use a specific launch file to launch the service server, and a specific launch file to launch the service client. The correct way is: start_bb8_move_custom_service_server.launch has to launch only the service server call_bb8_move_in_square_custom_servi…

[gabriel.ballet]

Hi,
Thanks, indeed in the launch file of the service client I was launching the service server also.
Applying those modifications makes the correction work but the program is not working anymore.

Regards
Gabriel

[bayodesegun]

@gabriel.ballet

but the program is not working anymore.

Could you please provide details on this? If it works for the Quiz, then you should be able to launch it manually. Perhaps you’re not launching it rightly.

[gabriel.ballet]

My question is should I launch the service server before launching the quizz correction ?

[bayodesegun]

@gabriel.ballet

My question is should I launch the service server before launching the quizz correction ?

You don’t need to launch anything before starting the Quiz. In fact, you should not and should kill everything else before starting the quiz as they can interfere.

The Quiz system will launch whatever it needs automatically.

[gabriel.ballet]

I looked at it deeper and I found an error that I didn’t have previously
ERROR: service [/move_bb8_in_square_custom] responded with an error: error processing request: global name ‘compee’ is not defined

I’ll try to find out where does it come from

Thanks
Regards
Gabriel

[gabriel.ballet]

Found a typo in the src file… Thanks for your help