Internal Error: Sub-system: HSSI, File: /quartus/periph/hssi/hssi_error_message.cpp, Line: 8841 - Internal Error: Sub-system: HSSI, File: /quartus/periph/hssi/hssi_error_message.cpp, Line: 8841 Description Due to a problem in the Quartus® Prime software version 16.1 update 2, you may see the internal error with Arria® 10 devices at beginning of the fitter stage. Resolution There is no workaround in the Quartus Prime software version 16.1 update 2. This problem is fixed in Quartus Prime software version 17.0. Custom Fields values: ['novalue'] Troubleshooting FB: 471157; False ['Transceiver Native PHY Arria® 10 Cyclone® 10 FPGA IP'] ['FPGA Dev Tools Quartus® Prime Software Pro'] 17.0 16.1.2 ['Arria® 10 FPGAs and SoCs'] ['novalue'] ['novalue'] ['novalue']