- A fatal error occurred: Could not open /dev/ttyS0, the port doesn't exist
I'm trying to program the ESP32 using Arduino IDE, and after installing and configuring everything according to the available documentation, I come across such a situation and I still haven't found anything similar on the internet. I'm using Ubuntu 20.01. The mentioned port appears without or with the ESP32 connected, that is, it is not the ESP32 itself.