arduino uno R3 L light stays on

I hope someone can help me, the L light on my arduino uno R3 stays on and when I try to download a sketch I get this era message
(AVRDUDE: STK500_SETSYNNC ( ) : not in SYNC: RESP=0x00)
Thanks

Jimmy

(deleted)

Thanks but it still did not work :slight_smile:

(deleted)

Jimmy,

Were you able to rectify this issue, i have the exact same problem