My Arduino code is not getting uploaded. It gives me "avrdude: ser_open(): can't set com-state for "\.\COM4" error. It worked literally 5 mins ago. now it doesn't work. I updated the drivers and stuff. I have a new Arduino and my code worked 5 mins ago. when i made some changes to the code It stopped working. I am using an (unofficial) Arduino Uno R3. the USB to UART chip's name is ATMEL Mega 16U2 2048 TW which I'm pretty sure is the Arduino mega chip?? my Arduino uses the ATMEL ATMEGA328P U. Please help Thanks in advance, Paradox
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