Intel: Quartus® Prime compilation of FPGA designs with Nios® II results in the error message "Can't generate netlist output files".

Nios II Quartus Prime

Category: Nios® II
Tools: Quartus® Prime
device:-

<Error message>
Error (204012): Can't generate netlist output files because the file “***/synthesis/submodules/xxx_nios2_qsys_0.v” is an OpenCore Plus time-limited file
Error (204009): Can't generate netlist output files because the license for encrypted file “***/synthesis/submodules/xxx_nios2_qsys_0.v” is not available

This error message is announced when the Nios® II IP is treated as OpenCore Plus and the SOF for Time-Limited is generated because there is no license for Nios® II.
When used with Nios® II Fast Core (/f), an IP license for Nios® II is required. (Nios II/e does not require a license.)
If you have a license, you will find "6AF7_00A2" in the FEATURE line (or INCREMENT line) in your license file.

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