I have been unable to do anything with my new Every. I believe that the the drivers are in place but I get this message when trying to upload "Blink":
Arduino: 1.8.12 (Windows Store 18.104.22.168) (Windows 10), Board: "Arduino Nano Every, None (ATMEGA4809)"
Sketch uses 1148 bytes (2%) of program storage space. Maximum is 49152 bytes.
Global variables use 22 bytes (0%) of dynamic memory, leaving 6122 bytes for local variables. Maximum is 6144 bytes.
An error occurred while uploading the sketch
avrdude: ser_open(): can't open device "\.\COM3": The system cannot find the file specified.
I get a steady green light and a blinking yellow on the board. Could it be the USB cable? How could I verify if this is the problem?