If you're using MPLab, my guess is that you don't have an Espruino board but have a PIC Microcontroller. If I were you I'd ask on the Microchip forums
@Gordon started
Espruino is a JavaScript interpreter for low-power Microcontrollers. This site is both a support community for Espruino and a place to share what you are working on.
If you're using MPLab, my guess is that you don't have an Espruino board but have a PIC Microcontroller. If I were you I'd ask on the Microchip forums