Error: Port "rx_signaldetect" does not exist in macrofunction "serdes" - Error: Port "rx_signaldetect" does not exist in macrofunction "serdes" Description Due to Quartus® II bug, you might get SERDES missing port errors such as rx_signaldetect, tx_pipemargin, or tx_pipedeemph after you regenerate PCIe core in a different Quartus versions. This issue is documented in Table 20-2 in Megacore IP Library Release Notes and Errata (PDF) . Perform the following steps to get around this issue: 1. Remove <variant>_serdes.v under the project directory 2. Regenerate the PCIE core using MegaWizard or SOPC builder. Related Articles Why do I get an Internal error message when compiling my PCIe design that was migrated from previous Quartus II software version with different PCIe link width? Custom Fields values: ['novalue'] Troubleshooting novalue False ['novalue'] ['novalue'] novalue novalue ['Arria® II GX FPGA'] ['novalue'] ['novalue'] ['novalue']