Klipper not connecting to the MCU

Basic Information:

anycubic mega 2.0 Octopus V1.1
Raspberry pi 4 B / Octopus V1.1
klipper v0.11.0-219

from mainsail update everything to the latest version after that it has not worked for me it says that moonraker does not connect to the MCU.

I run the ls /dev/serial/by-id/* command and I don’t get the id

and fix your undervoltage warnings, or you might have additional issues

I don’t know what I have to do here

What is missing? Does not look too complicated to follow these few steps,no?

I already did it, but it didn’t work for me

Read the instructions again

it is solved thank you very much :grinning:

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