Internal Error: Sub-system: SGN, File: sgn_extractor.cpp

When I compiled a project, an internal error was found, just like below:

Internal Error: Sub-system: SGN, File: /quartus/synth/sgn/sgn_extractor.cpp, Line: 7410

!m_proc_info->get_opencore_cores()->empty()

Stack Trace:

0x7EF64 : DllSgnStart + 0x725D4 (synth_sgn)

End-trace

:cry: :cry: :cry:

Can someone help me?