Why does Qsys error out when generating the IP Compiler for PCI Express testbench for Cyclone IV GX in Quartus II version 14.0 and up? - Why does Qsys error out when generating the IP Compiler for PCI Express testbench for Cyclone IV GX in Quartus II version 14.0 and up? Description Due to a problem in Quartus® II version 14.0 and 14.1, testbench generation fails when selecting the Generate Testbench System tab and will show the below error. Error: Component pcie_hard_ip_0_pcie_bfm_0 does not support selected device family Cyclone IV GX Resolution Please revert back to Quartus II version 13.1 to generate the testbench for Cyclone® IV. This issue is scheduled be fixed in a future Quartus II release. Custom Fields values: ['novalue'] Troubleshooting novalue False ['novalue'] ['FPGA Dev Tools Quartus II Software'] novalue 14.0 ['Cyclone® IV GX FPGA'] ['novalue'] ['novalue'] ['novalue']