Make sure that your HPC Curiosity Board is connected to your computer using the USB cable.
Click the Make and Program icon 
.
This will build the project again and launch the programmer. In the MPLAB X output window, you should see a series of messages. If successful, it will end with a "Programming/Verify complete" message.
The D3 (RA5) LED will blink every 1/2 second if successful. 