Problem with Quartus Prime 16.0 Lite Edition.

The fact that the design compiled previously with QP 16.0 changes the picture. A couple of suggestions:

1. If you made changes to the design since the last time it compiled, try to revert back to an older revision and see if that compiles. Then add changes back in one at a time and see if/when the problem returns.

2. Sometimes cleaning out the project directory can fix problems like this. You can do a Project -> Clean Project ... from within Quartus, but I usually just manually delete all the files generated by Quartus. Be careful, though, if you delete manually. You have to know what files you can delete! (Don't delete .qpf, .qsf. .sdc, source files, IP files, etc.)