My arduino is null help

i keep getting this error i have arduino uno pls help

If it’s a clone UNO it may need a CH340 driver to be installed . I’d try that first .

Can you tell us what the chip close to the USB port has printed on it, as there are a few chips it could be. It is very unlikely to be an FTDI chip, as I think these were last used in the duemilenove (Pre-R3) boards.

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