Internal Error: Sub-system: U2B2_CDB, File: /quartus/db/u2b2/u2b2_re_network_checker.cpp, Line: 232 - Internal Error: Sub-system: U2B2_CDB, File: /quartus/db/u2b2/u2b2_re_network_checker.cpp, Line: 232 Description Due to a problem in the Intel® Quartus® Prime Pro Edition Software version 23.3 and earlier, you might see this internal error message during compilation when the output of an IO PLL is directly connected to the output pin. The problem occurs when the output pin has a 2.5/3.0/3.3 voltage level and targets an Intel® Cyclone® 10 GX device or Intel® Arria® 10 device. Resolution This problem is fixed beginning with version 23.4 of the Intel® Quartus® Prime Pro Edition Software. Custom Fields values: ['novalue'] Troubleshooting 15014672465 False ['novalue'] ['FPGA Dev Tools Quartus® Prime Software Pro'] 23.4 23.3 ['Arria® 10 FPGAs and SoCs', 'Cyclone® 10 GX FPGA'] ['novalue'] ['novalue'] ['novalue']