Error (12252): Alt_xcvr_reconfig_cpu: "Device family" (deviceFamily) (Stratix V) out of range. Valid ranges: [Cyclone III:Cyclone III, Cyclone III LS:Cyclone III LS, Cyclone V:Cyclone V, Unknown:Unknown] - Error (12252): Alt_xcvr_reconfig_cpu: "Device family" (deviceFamily) (Stratix V) out of range. Valid ranges: [Cyclone III:Cyclone III, Cyclone III LS:Cyclone III LS, Cyclone V:Cyclone V, Unknown:Unknown] Description You may encounter this error during Quartus® II compilation if you use the *.qsys file to add the Qsys system to your Quartus II project with Cyclone® V GX devices. Resolution Use the *.qip file to add the Qsys system to your Quartus® II project. Custom Fields values: ['novalue'] Troubleshooting 00 False ['Interfaces'] ['FPGA Dev Tools Quartus II Software'] novalue 12.1 ['Cyclone® V GX FPGA'] ['novalue'] ['novalue'] ['novalue']