avr-g++: error: device-specs/specs-atmega4809: No such file or directory

[dns28]

Hello,

I installed Arduino IDE 1.8.19 on Raspberry Pi (Linux raspberrypi 6.12.20+rpt-rpi-2712 #1 SMP PREEMPT Debian 1:6.12.20-1+rpt1~bpo12+1 (2025-03-19) aarch64 GNU/Linux) using sudo apt install arduino.

Using Boards Manager I installed Arduino megaAVR Boards package.

When I try to compile any sketch for Arduino Uno Wifi rev2 I get the following error:

Warning: platform.txt from core 'Arduino megaAVR Boards' contains deprecated compiler.path={runtime.tools.avr-gcc.path}/bin/, automatically converted to compiler.path=/usr/bin/. Consider upgrading this core.
avr-g++: error: device-specs/specs-atmega4809: No such file or directory
exit status 1
Error compiling for board Arduino Uno WiFi Rev2.

Can you please help solving this problem?

Many thanks.