I just purchased a 3-pack of Lafvin "Nano V3.0, Nano Board ATmega328P" on Amazon. I selected Tools>Board>Arduino Nano in the IDE.
When trying to upload "blink" I got the following error " [avr-g++: no such file or directory]". I finally solved the problem by selecting Tools>Board>Arduino Uno.
(I'm running Mac OS X Sonoma 14.4 and Arduino IDE 2.3.4)
I finally solved the problem by selecting Tools>Board>Arduino Uno.
This was after trying several different approaches, including reinstalling the IDE, installing "Xcrun" after the popups kept telling me to install it, changing the AVR board installer version to older version, changing the bootloader etc...