Errors from ATMega32u4 chip about avr-hal HOT 4 CLOSED

I am not able to reproduce these errors, it works perfectly fine for me ... From the error messages it looks like you are trying to build atmega32u4-hal with an avr-device crate for ATmega328P? At least 32U4 has PORT{E,F} while 328P does not ...

Can you try cleaning your target/ and rebuilding?

from avr-hal.

Oh, I see what you did ... You probably attempted to build from the repository root? Please follow the exact instructions from the README. You should build inside one of the crate directories, eg. in your case boards/arduino-uno/.

from avr-hal.

Yup, I think those errors were appearing because I build from the root folder. It succeeds when I build from within the atmega32u4 chip dir.

from avr-hal.

FYI, I made the error message in this case a little clearer. It should now display

error: You cannot select multiple chips at once!
  --> /home/rahix/.cargo/git/checkouts/avr-device-86e4c21e2d4dc300/f77864d/src/lib.rs:66:1
   |
66 | compile_error!("You cannot select multiple chips at once!");
   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: aborting due to previous error

error: Could not compile `avr-device`.

I know this still does not point to the root cause but at least it is better than the obscure error you got ... For a real fix we have to choose a design as described in Rahix/avr-device#17.

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