These are the similar questions in: Ask a new question.

User
Arduino First-Ardui… 04-0540-50error while uploading the program (prog…19-03-242451mrudulap3…
Arduino First-Ardui… 04-0540-50I've Windows 7 OS & ARKduino Board. I'm…29-04-209571gsw.741@g…
Arduino First-Ardui… 04-0540-50Problem uploading to board.08-09-181136112_jaydeep
Arduino First-Ardui… 04-0540-50serial port not selected error22-01-2072342jani