2.2.3 did not work on non-ESP32 boards
In the last release I added the function:
_spi->begin(sckPin, misoPin, mosiPin, csPin);
...to enable users to change the SPI pins for ESP32 boards. This causes a compiler error on non-ESP32 boards, eventhough it's not used on these boards. I have now embraced this function by an #ifdef ESP32 clause.