Internal Error: Sub-system: CONSTRA, File: /quartus/db/constra/constra_mvsat_bcm_solver.cpp, Line: 523 - Internal Error: Sub-system: CONSTRA, File: /quartus/db/constra/constra_mvsat_bcm_solver.cpp, Line: 523 Description Due to a problem in the Intel® Quartus® Prime Pro Edition Software version 17.1 and earlier, you might see this internal error at the fitter stage when redundant pin settings exist for the transceivers in the design. Resolution This problem is fixed starting with the Intel® Quartus® Prime Pro Edition Software version 18.0. Custom Fields values: ['novalue'] Troubleshooting 2205664864 False ['novalue'] ['FPGA Dev Tools Quartus® Prime Software Pro'] 18.0 17.1 ['Stratix® 10 FPGAs and SoCs'] ['novalue'] ['novalue'] ['novalue']