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Hi, I use systemc on win7-Visual2012. it seems that i get large number of LNK2001 & LNK2019 errors. i rechecked, systemc.lib in place, include dir & include lib are in order. here is sample of it: 1> Generating Code... 1>mult_unit.obj : error LNK2001: unresolved external symbol "public: __thiscall sc_core::sc_simcontext::sc_simcontext(void)" (??0sc_simcontext@sc_core@@QAE@XZ) 1>sqrt_unit.obj : error LNK2019: unresolved external symbol "public: __thiscall sc_core::sc_simcontext::sc_simcontext(void)" (??0sc_simcontext@sc_core@@QAE@XZ) referenced in function "public: void __thiscall std::_Container_base12::_Orphan_all(void)" (?_Orphan_all@_Container_base12@std@@QAEXXZ) 1>s_c_unit.obj : error LNK2001: unresolved external symbol "public: __thiscall sc_core::sc_simcontext::sc_simcontext(void)" (??0sc_simcontext@sc_core@@QAE@XZ) 1>tb.obj : error LNK2001: unresolved external symbol "public: __thiscall sc_core::sc_simcontext::sc_simcontext(void)" (??0sc_simcontext@sc_core@@QAE@XZ) 1>awgn.obj : error LNK2001: unresolved external symbol "public: __thiscall sc_core::sc_simcontext::sc_simcontext(void)" (??0sc_simcontext@sc_core@@QAE@XZ) 1>cnct_unit.obj : error LNK2001: unresolved external symbol "public: __thiscall sc_core::sc_simcontext::sc_simcontext(void)" (??0sc_simcontext@sc_core@@QAE@XZ) 1>log_unit.obj : error LNK2001: unresolved external symbol "public: __thiscall sc_core::sc_simcontext::sc_simcontext(void)" (??0sc_simcontext@sc_core@@QAE@XZ) 1>main.obj : error LNK2001: unresolved external symbol "public: __thiscall sc_core::sc_simcontext::sc_simcontext(void)" (??0sc_simcontext@sc_core@@QAE@XZ) 1>s_c_unit.obj : error LNK2001: unresolved external symbol "void __cdecl sc_core::wait(class sc_core::sc_simcontext *)" (?wait@sc_core@@YAXPAVsc_simcontext@1@@Z) 1>tb.obj : error LNK2019: unresolved external symbol "void __cdecl sc_core::wait(class sc_core::sc_simcontext *)" (?wait@sc_core@@YAXPAVsc_simcontext@1@@Z) referenced in function "public: __thiscall sc_dt::sc_uint<32>::sc_uint<32>(int)" (??0?$sc_uint@$0CA@@sc_dt@@QAE@H@Z) 1>awgn.obj : error LNK2001: unresolved external symbol "void __cdecl sc_core::wait(class sc_core::sc_simcontext *)" (?wait@sc_core@@YAXPAVsc_simcontext@1@@Z) 1>log_unit.obj : error LNK2001: unresolved external symbol "void __cdecl sc_core::wait(class sc_core::sc_simcontext *)" (?wait@sc_core@@YAXPAVsc_simcontext@1@@Z) 1>mult_unit.obj : error LNK2001: unresolved external symbol "void __cdecl sc_core::wait(class sc_core::sc_simcontext *)" (?wait@sc_core@@YAXPAVsc_simcontext@1@@Z) 1>sqrt_unit.obj : error LNK2001: unresolved external symbol "void __cdecl sc_core::wait(class sc_core::sc_simcontext *)" (?wait@sc_core@@YAXPAVsc_simcontext@1@@Z) 1>awgn.obj : error LNK2019: unresolved external symbol "void __cdecl sc_core::sc_set_location(char const *,int,class sc_core::sc_simcontext *)" (?sc_set_location@sc_core@@YAXPBDHPAVsc_simcontext@1@@Z) referenced in function "public: void __thiscall awgn::thread0(void)" (?thread0@awgn@@QAEXXZ) 1>tb.obj : error LNK2001: unresolved external symbol "void __cdecl sc_core::sc_set_location(char const *,int,class sc_core::sc_simcontext *)" (?sc_set_location@sc_core@@YAXPBDHPAVsc_simcontext@1@@Z) 1>mult_unit.obj : error LNK2001: unresolved external symbol "public: __thiscall sc_core::sc_api_version_2_3_1<&int const sc_core::SC_DISABLE_VIRTUAL_BIND_UNDEFINED_>::sc_api_version_2_3_1<&int const sc_core::SC_DISABLE_VIRTUAL_BIND_UNDEFINED_>(enum sc_core::sc_writer_policy)" (??0?$sc_api_version_2_3_1@$1?SC_DISABLE_VIRTUAL_BIND_UNDEFINED_@sc_core@@3HB@sc_core@@QAE@W4sc_writer_policy@1@@Z) 1>sqrt_unit.obj : error LNK2001: unresolved external symbol "public: __thiscall sc_core::sc_api_version_2_3_1<&int const sc_core::SC_DISABLE_VIRTUAL_BIND_UNDEFINED_>::sc_api_version_2_3_1<&int const sc_core::SC_DISABLE_VIRTUAL_BIND_UNDEFINED_>(enum sc_core::sc_writer_policy)" (??0?$sc_api_version_2_3_1@$1?SC_DISABLE_VIRTUAL_BIND_UNDEFINED_@sc_core@@3HB@sc_core@@QAE@W4sc_writer_policy@1@@Z) 1>s_c_unit.obj : error LNK2019: unresolved external symbol "public: __thiscall sc_core::sc_api_version_2_3_1<&int const sc_core::SC_DISABLE_VIRTUAL_BIND_UNDEFINED_>::sc_api_version_2_3_1<&int const sc_core::SC_DISABLE_VIRTUAL_BIND_UNDEFINED_>(enum sc_core::sc_writer_policy)" (??0?$sc_api_version_2_3_1@$1?SC_DISABLE_VIRTUAL_BIND_UNDEFINED_@sc_core@@3HB@sc_core@@QAE@W4sc_writer_policy@1@@Z) referenced in function "public: void __thiscall std::_String_alloc<0,struct std::_String_base_types<char,class std::allocator<char> > >::_Free_proxy(void)" (?_Free_proxy@?$_String_alloc@$0A@U?$_String_base_types@DV?$allocator@D@std@@@std@@@std@@QAEXXZ) 1>tb.obj : error LNK2001: unresolved external symbol "public: __thiscall sc_core::sc_api_version_2_3_1<&int const sc_core::SC_DISABLE_VIRTUAL_BIND_UNDEFINED_>::sc_api_version_2_3_1<&int const sc_core::SC_DISABLE_VIRTUAL_BIND_UNDEFINED_>(enum sc_core::sc_writer_policy)" (??0?$sc_api_version_2_3_1@$1?SC_DISABLE_VIRTUAL_BIND_UNDEFINED_@sc_core@@3HB@sc_core@@QAE@W4sc_writer_policy@1@@Z) 1>awgn.obj : error LNK2001: unresolved external symbol "public: __thiscall sc_core::sc_api_version_2_3_1<&int const sc_core::SC_DISABLE_VIRTUAL_BIND_UNDEFINED_>::sc_api_version_2_3_1<&int const sc_core::SC_DISABLE_VIRTUAL_BIND_UNDEFINED_>(enum sc_core::sc_writer_policy)" (??0?$sc_api_version_2_3_1@$1?SC_DISABLE_VIRTUAL_BIND_UNDEFINED_@sc_core@@3HB@sc_core@@QAE@W4sc_writer_policy@1@@Z) 1>cnct_unit.obj : error LNK2001: unresolved external symbol "public: __thiscall sc_core::sc_api_version_2_3_1<&int const sc_core::SC_DISABLE_VIRTUAL_BIND_UNDEFINED_>::sc_api_version_2_3_1<&int const sc_core::SC_DISABLE_VIRTUAL_BIND_UNDEFINED_>(enum sc_core::sc_writer_policy)" (??0?$sc_api_version_2_3_1@$1?SC_DISABLE_VIRTUAL_BIND_UNDEFINED_@sc_core@@3HB@sc_core@@QAE@W4sc_writer_policy@1@@Z) 1>log_unit.obj : error LNK2001: unresolved external symbol "public: __thiscall sc_core::sc_api_version_2_3_1<&int const sc_core::SC_DISABLE_VIRTUAL_BIND_UNDEFINED_>::sc_api_version_2_3_1<&int const sc_core::SC_DISABLE_VIRTUAL_BIND_UNDEFINED_>(enum sc_core::sc_writer_policy)" (??0?$sc_api_version_2_3_1@$1?SC_DISABLE_VIRTUAL_BIND_UNDEFINED_@sc_core@@3HB@sc_core@@QAE@W4sc_writer_policy@1@@Z) 1>main.obj : error LNK2001: unresolved external symbol "public: __thiscall sc_core::sc_api_version_2_3_1<&int const sc_core::SC_DISABLE_VIRTUAL_BIND_UNDEFINED_>::sc_api_version_2_3_1<&int const sc_core::SC_DISABLE_VIRTUAL_BIND_UNDEFINED_>(enum sc_core::sc_writer_policy)" (??0?$sc_api_version_2_3_1@$1?SC_DISABLE_VIRTUAL_BIND_UNDEFINED_@sc_core@@3HB@sc_core@@QAE@W4sc_writer_policy@1@@Z) 1>mult_unit.obj : error LNK2001: unresolved external symbol "protected: void __thiscall sc_core::sc_port_base::report_error(char const *,char const *)const " (?report_error@sc_port_base@sc_core@@IBEXPBD0@Z) it goes on and on.. hope anyone can give me an idea... V