avrdude: ser_open(): can't set com-state for "\\.\COM8"

i cant upload anything on my arduino uno...why?

Is COM8 the correct port? Verify against what device manager tells you.

Sometimes ports get stuck; a reboot of the PC might solve this.

dear aljazcernigoj,

to Solve this problem you must follow the instructions:

1.right click on (My Computer) window.
2.Click Properties
3.click "device Manager" on the left side
4.click twice on "Ports (COM & LPT)"
5.right click on "arduino"
6.click "update driver software"
7.click the second option
8.choose the drivers folder in arduino folder (in Programfiles folder)
9.click "next"
IN ARDUINO IDE:
1.click "tools" tab
2.choose the board type
3.choose the arduino COM

Regards

,kiroloes

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