You must set the Qsys FAMILY before other QSYS_FILE settings - You must set the Qsys FAMILY before other QSYS_FILE settings Description In the Quartus II software version 15.0, compilation can fail if you set the device family ( FAMILY ) in the Quartus II Settings File ( .qsf ) after any device-family specific .qsf assignment (such as QSYS_FILE ). Resolution Certain .qsf assignments have device-family specific behavior. You must set the FAMILY .qsf assignments before setting any other device-family specific .qsf assignments. Custom Fields values: ['novalue'] Troubleshooting novalue True ['novalue'] ['FPGA Dev Tools Quartus II Software'] novalue 15.0 ['Programmable Logic Devices'] ['novalue'] ['novalue'] ['novalue']