"Option 'serial' in section 'mcu' must be specified" Yet I have it specified correctly

General Discussion
2 
Git version: 'dgus-reloaded-230526-0-gbaae7f3a'
  1. Make sure to run a recent and unmodified Klipper version on your host as well as on the printer board.
  2. Running Klipper under a virtual environment is not supported. Might work, might not. See Running Klipper in a Virtual Machine (VM)
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