Occasionally I have this problem where I can not upload sketches to the Nicla. I double tap the reset button to trigger bootloader (causing it to flash green 3 times and then flashe red forever) then try to upload the sketch again but receive the same error message:
Open On-Chip Debugger 0.11.0+dev-gab95bac57-dirty (2021-05-11-10:45)
Licensed under GNU GPL v2
For bug reports, read
http://openocd.org/doc/doxygen/bugs.html
debug_level: 2
adapter speed: 1000 kHz
Error: unable to open CMSIS-DAP device 0x2341:0x60
Error: unable to find a matching CMSIS-DAP device
the selected serial port
does not exist or your board is not connectedAny ideas how to correct this issue?