[Heico]

Hallo Wolfi,

I have the same problem. My workaround is that I use the “avrdude/6.3.0-arduino17”

My “failing” command is “/Users/xxx/Library/Arduino15/packages/arduino/tools/avrdude/6.3.0-arduino8/bin/avrdude” “-C/Users/xxx/Library/Arduino15/packages/arduino/tools/avrdude/6.3.0-arduino8/etc/avrdude.conf” -v -V -patmega2560 -cwiring “-P/dev/cu.usbmodem1411301” -b115200 -D “-Uflash:w:/private/var/folders/02/2m5xmk0j5bb19k5jt4lnh46h0000gq/T/arduino-sketch-B44509711192F6CF6691A744BF3E1B30/Lueftung.ino.hex:i”

(This is the copy from output window of the IDE, last line, all possible output enabled)

I open a terminal window and the I can load the hex file with:

“/Users/xxx/Library/Arduino15/packages/arduino/tools/avrdude/6.3.0-arduino17/bin/avrdude” “-C/Users/xxx/Library/Arduino15/packages/arduino/tools/avrdude/6.3.0-arduino17/etc/avrdude.conf” -v -V -patmega2560 -cwiring “-P/dev/cu.usbmodem1411301” -b115200 -D “-Uflash:w:/private/var/folders/02/2m5xmk0j5bb19k5jt4lnh46h0000gq/T/arduino-sketch-B44509711192F6CF6691A744BF3E1B30/Lueftung.ino.hex:i”

Make sure that the Serial Monitor is not blocking the “serial line”

Does anyone have an idea how to fix this in the IDE?

Regards

Heico