avrdude seropen can't open device Arduino

avrdude ser_open() can't set com-state
avrdude: ser_open(): can't open device "/dev/ttyUSB0": No
avrdude - Arduino not responding to macbook pro
avrdude: ser_open(): can't open device "\\.\COM3"? [closed]
#arduino #can'topendevice #avrdude ser_open