nucleo-f031k6 download problem

[lv333ming]

Follow the instructions here https://github.com/stm32duino/wiki/wiki/Getting-Started
nucleo-f031k6 unable to work properly

[fpistm]

Sorry for the delay missed that.

I've tested and it works.
Moreover you don't provide enough information in order to get help and issue is not on the correct repo.

[fpistm]

Just remember this:
stm32duino/Arduino_Core_STM32#1787

So maybe it is your issue. Fix will be available with 2.4.0