Hello. I was wondering how do I import and use an entity I created in one VHD file in another VHD file? What folder do I have to place the file in and how do I reference in the file I need to use it in.

Also, every time I try to put a second entity in a single VHD file I get a weird "out of virtual memory" error.Either tha, or it tells me that STD_LOGIC is reference but not used in the second entity, but not for the first. I tried placing the entities in different order and it is always the second one that throws the error.

Any help would be much appreciated!