Arduino Nano Every uploading message (warning?)

[orionis]

I wish to test the Every, that I neved used before, for a new project.
I made a simple sketch for a standard Nano and positively tested it.
I replaced the MCU and configured the IDE accordingly, I hope; see the images:

The program is still running ok, but the ouput window show the message you can see in the images; I report it here:

Sketch uses 9762 bytes (19%) of program storage space. Maximum is 49152 bytes.
Global variables use 590 bytes (9%) of dynamic memory, leaving 5554 bytes for local variables. Maximum is 6144 bytes.
avrdude: jtagmkII_initialize(): Cannot locate "flash" and "boot" memories in description

What is the last line? Is it something I should worry about?
Thanks

[cattledog]

This warning is normal, expected, and doesn’t indicate any problem. Please ignore it.

https://support.arduino.cc/hc/en-us/articles/4405239282578-avrdude-jtagmkII-initialize-Cannot-locate-flash-and-boot-memories-in-description

[DrAzzy]

I sure hope this is fixed in AVRdude 7.x - if it's not, I'm going to make sure that they are aware of the amount of confusion it causes among users, and express my opinon on it and any of the other Worst Three Errors that haven't been rephrased or otherwise mitigated.

[cattledog]

@DrAzzy

I sure hope this is fixed in AVRdude 7.x

Indeed, the latest version of MegaCoreX (1.1.2) uses avrdude: Version 7.1-arduino.1 and the message does not appear.

[DrAzzy]

Thank god.

My cores are going to be jumping on board with 7.2 (there really are some fixes in that vs 7.1 which I want) and they say it is coming out next month...