I have a Terasic DE10-Lite board that contains an FPGA marked with device number 10M50DAF484C7G.

​Hi dlim,

I am not sure why this is happening on my install but fortunately, I found a work around. After the project is created, I click the device in the Project Navagator then it opens a window where it lets me select my exact device (10M50DAF484C7G). So far it is working fine this way.