User Manual

feather_dfu.py in the Arduino IDE. What should I do?
If you get the following error in the Arduino IDE when trying to flash a sketch, you probably don't have dfu-util
installed on your system:
OSError: [Errno 2] No such file or directory
OSError: [Errno 2] No such file or directory
Install dfu-util as detailed in this guide for your target OS.
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