Internal Error: Sub-system: EMIF, File: /quartus/h/cdb_atom_sys.h, Line: 860

Description

Due to a problem in the Intel® Quartus® Prime Pro Edition software version 17.1 Update 1, you may see this error message during the fitter stage of compilation. 

Resolution

This problem is fixed beginning with the Intel Quartus Prime Pro Edition software version 18.0.