Error (125091): Tcl error: missing " while executing "set_global_assignment -name IP_GENERATED_DEVICE_FAMILY "" (file "rtl/pll_sys.qip" line 3) Info (125063): set_global_assignment -name QIP_FILE rtl/pll_sys.qip

I'm not sure if this is referring to a PLL IP in your design or something else, but whatever it is, reopen its parameter editor and regenerate the IP. Then double-check that the .qip file has been added to your Quartus project.

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