Internal error

[Altera_Forum]

Do you can to help me for resolve this problem ! 

 Thank's in advance  Internal Error: Sub-system: SGN, File: /quartus/synth/sgn/sgn_prim_mapper.cpp, Line: 1831 port_entry->input_port != NULL Stack Trace: 0x9EFB4 : SGN_HSSI_CONVERT::operator= + 0x9754 (synth_sgn) 0xA9F0A : SGN_HSSI_CONVERT::operator= + 0x146AA (synth_sgn) 0x9BF21 : SGN_HSSI_CONVERT::operator= + 0x66C1 (synth_sgn) 0x927C6 : sgn_qic_helper + 0x86B76 (synth_sgn) 0x93B5D : sgn_qic_helper + 0x87F0D (synth_sgn) 0x5580 : mem_out_of_memory + 0x4F0 (ccl_mem) 0x80B5 : MEM_SEGMENT_INTERNAL::allocate + 0x95 (ccl_mem)  End-trace  Quartus II Version 9.0 Build 132 02/25/2009 SJ Web Edition

[Altera_Forum]

We cant read the causes of crashes here. 

 Possible solutions: Try a newer version (9.0 is a couple of years old) Delete the DB and incremental_DB directory.  Otherwise raise a mysupport request with altera.

[Altera_Forum]

i doubt you'll get far with mySupport and 9.0. definitely upgrade 

 i see clues about transceivers, incremental compile, and running out of memory

[Altera_Forum]

Delete DB and incremental_DB. If it doesn't work delete all non necessary files (everything but .vhd, .sdc .sopc and other important stuff)