you need copy these three files to your home assistant folder.
the LOG showed, can't find the files. make sure you have copied to correct folder as our photo.
I copied the 3 files as per attached photo. file editor inside the esphome folder
take a photo of your file folder structure.
[allegato=7290]
ecco la struttura
now it finds the 3 files but gives this new error in the installation
@admin is it configured well?
yes, it compile SUCCESS. just connect with your USB cable download to ESP32 chip.
What do you need to do as a next step? Do I need to change my api code? I would like to connect to wifi
the yaml file config use by ethernet, if you want use by wifi, modify the yaml file. you can see esphome online guide firstly , how to use wifi.