Internal Error: Sub-system: VPR20KMAIN, File: /quartus/fitter/vpr20k/altera_arch_common/altera_arch_net_rr_terminals.c, Line: 2470 - Internal Error: Sub-system: VPR20KMAIN, File: /quartus/fitter/vpr20k/altera_arch_common/altera_arch_net_rr_terminals.c, Line: 2470 Description Due to a problem in the Intel® Quartus® Prime Pro Edition software version 17.1 Update 1, you may see this Internal Error in a fitter stage. Resolution This problem is fixed beginning with the Intel® Quartus® Prime Pro Edition software version 18.1 Custom Fields values: ['novalue'] Troubleshooting FB: 2205686265; False ['novalue'] ['FPGA Dev Tools Quartus® Prime Software Pro'] 18.1 17.1.1 ['Programmable Logic Devices'] ['novalue'] ['novalue'] ['novalue'] - 2021-08-25

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