# \#arduino

**URL:** https://discuss.blues.com/tag/arduino/42.md

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## [DFU not working in Arduino IDE (MacOS)](https://discuss.blues.com/t/dfu-not-working-in-arduino-ide-macos/3492)

<div class="topic-metadata">

**Author:** [@zfields](https://discuss.blues.com/u/zfields)\
**Replies:** 1\
**Last updated:** [March 10, 2026, 10:34pm UTC](https://discuss.blues.com/t/dfu-not-working-in-arduino-ide-macos/3492 "2026-03-10T22:34:15Z")

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When I try to flash firmware using DFU from the latest Arduino IDE, I’m encountering the following error: \`\`\` sh “/Users/rozzie/Library/Arduino15/packages/STMicroelectronics/tools/STM32Tools/2.4.0/stm32CubeProg.sh” …