title: Arduino Nano - "avrdude: ser_open():system can't open device "\\.\COM1": the system cannot find the file specified"
body: <p>I am working with an <a href="https://en.wikipedia.org/wiki/List_of_Arduino_boards_and_compatible_systems#Official" rel="noreferrer">Arduino Nano</a>.</p>
  
  <blockquote>
    <p>avrdude: ser_open(): system can't open device "\.\COM1": the system cannot find the file specified</p>
  </blockquote>
  
  <p>This error appears just after uploading the program on the Arduino board. I have checked my port in my device manager. It says COM11 and in the Arduino software as well COM11 is selected.</p>
  
  <p>I have the Arduino Nano board selected in my Arduino software. Also, there mustn't be any specification error while downloading the software file. Is there anything that I am missing?</p>