Upload fails: avrdude: ser_open(): can't set com-state for "\\.\COM6"

Hi @ardu1n0_098.

Just to make sure, when you say "same problem", do you mean that uploads are failing with the an "avrdude: ser_open(): can't set com-state for error message, like this?:

(of course, the COM port number could be different for you)

If so, did you try the fix linked to by @sterretje in post #2?