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Honored Contributor I
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Internal error sub-system SGN, version 13.1.4

I have a cyclone III project and just tried compiling it in the last Quartus II that supports it and got: 

 

Internal Error: Sub-system: SGN, File: /quartus/synth/sgn/sgn_proc_info.h, Line: 90 

lhs.size() == rhs.size() 

Stack Trace: 

0x4fd99: sgn_qic_helper + 0x3ed39  

0x61293: sgn_qic_helper + 0x50233  

0x61b91: sgn_qic_helper + 0x50b31  

0x62f7b: sgn_qic_helper + 0x51f1b  

0xb5f4c: sgn_clear_check_ip_functor + 0x192dc  

0xb286a: sgn_clear_check_ip_functor + 0x15bfa  

0xb5f4c: sgn_clear_check_ip_functor + 0x192dc  

0xba0dd: sgn_clear_check_ip_functor + 0x1d46d  

0x10de2: sgn_qic_full + 0x152  

 

 

 

 

 

 

0x128ed: qexe_get_command_line + 0x206d  

0x1573e: qexe_process_cmdline_arguments + 0x59e  

0x15851: qexe_standard_main + 0xa1  

 

 

0xa7f8: msg_exe_fini + 0x58  

0xaf3c: msg_exe_fini + 0x79c  

0x1f04: MEM_SEGMENT_INTERNAL::~MEM_SEGMENT_INTERNAL + 0x194  

0xb8bf: msg_exe_main + 0x8f  

 

 

0x8363: BaseThreadInitThunk + 0x13  

0x670d0: RtlUserThreadStart + 0x20  

 

 

End-trace 

 

 

Quartus II 64-Bit Version 13.1.4 Build 182 03/12/2014 SJ Web Edition 

 

 

Are there any fixes or workarounds? This worked on version 10.0 and I tried deleting the "db" and other folders that were created.
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