Internal Error: Sub-system: PTI, File: /quartus/tsm/pti/pti_tdb_builder.cpp, Line: 3555 - Internal Error: Sub-system: PTI, File: /quartus/tsm/pti/pti_tdb_builder.cpp, Line: 3555 Description In the Intel® Quartus® Prime Pro Edition Software version 18.1 and later, this error message may be seen in designs that target an Intel® Arria® 10 device and include one or more instances of the GPIO Intel® FPGA IP. Resolution Usage of an Intel® Quartus® Prime Software release not affected by the problem is advised. This problem is fixed starting with the Intel® Quartus® Prime Pro Edition Software version 19.2. Custom Fields values: ['novalue'] Troubleshooting 1507074625 False ['novalue'] ['FPGA Dev Tools Quartus® Prime Software Pro'] 19.2 18.1 ['Arria® 10 FPGAs and SoCs'] ['novalue'] ['novalue'] ['novalue']