Quartus Compilation Errors 275044 and 12153

Hi, your issue are on your design not on tool.

These error are related to your instance assigning pin to VCC, output vector 3 downto 0 is 4 element on output where 5 element..

VHDL has nothing wrong, so it can work, assign pin by pin planner or if you prefer bdf, remove VCC from a and connect where this has to be.

Not Quartus related. Please don't flood topic have nothing to do here, is better on vhdl forum.