AttributeError: 'NoneType' object has no attribute 'timed'

[JaeYoungLee79]

Dear Sir

Enviroment

• windows
• visual studio code

Last year, i was do.
But, result is

What is wrong?

Thanks
Best Regards

[JaeYoungLee79]

I also try this at rasberry pi 4.
Same result.

[JaeYoungLee79]

"demo.py" file run.

[undera]

The warning of "Got only these devices..." says that some of expected onboard devices were not found.

Are you using MoveHub hardware block from LegoBoost or some other hardware type?