I'm having trouble connecting to the Nano Every. I have a UNO that I connect to just fine with the cloud based editor and with agent version 1.2.5 running on a Mac mini running Monterey 12.0.1.
I decided to download the IDE and give that a try to connect to the Nano Every.
What I tried:
Downloaded and am running Arduino IDE Version 2.0.0-rc3
Used board manager to install Arduino megaAVR Boards Version 1.8.7
Selected a board with name Arduino Nano Every
Selected a port /dev/cu.usbmodem807.......
Tried two different USB micro cables.
Tried Arduino IDE Version 1.8.19
Verified using terminal that my USB port name matches that used by Arduino IDE
Could you solve your problem?
I am having the same with the Nano Every.
It seems to me like the driver is missing, even though the Boards Manager library is Arduino megaAVR Boards Version 1.8.7
I cannot select any Port to connect to the Arduino. My PC doesnt see.
I tried different USB cables. Still is it possible, that the cable is the problem?
Use a good quality data USB cable (do not use a USB hub or USB 3.0 port) and use a classic IDE like Arduino IDE 1.8.19 with the package core installed.
I know you said you verified this port, but it is worth doing a double check that this is really the port of your Nano Every because this error can be caused by having the wrong port selected.
If you open the Tools > Port menu of the Arduino IDE, does it say "(Arduino Nano Every)" to the right of the port name like this?: