When I try to run the skitch to install Grbl I get this ,and I have no Idea as to what this means I hvent seen this on trouble shooting anywhere.
Thanks for the help
Arduino: 1.8.13 (Windows 10), Board: “Arduino Uno”
Sketch uses 29594 bytes (91%) of program storage space. Maximum is 32256 bytes.
Global variables use 1484 bytes (72%) of dynamic memory, leaving 564 bytes for local variables. Maximum is 2048 bytes.
An error occurred while uploading the sketch
avrdude: ser_open(): can’t open device “\.\COM3”: The system cannot find the file specified.
This report would have more information with
“Show verbose output during compilation”
option enabled in File → Preferences.