Update.
It appears to be a bug in the IDF Plugin for Eclipse 2020-09:
https://github.com/espressif/idf-eclips ... issues/127
The suggestion is to use Eclipse 2020-06 until fixed.
L

Hi everyone,
Just confirming the problem reported by Pradeep and in the other mentioned thread.
I attach a screenshot below.
As the error indications are bare, it is quite difficult even to figure out where the problem could be.
Thank you in advance for any suggestions.
Regards,
Luca