Re: Linker error LNK2019
There is obviously a code source (probably a library) that defines these ACE classes, and it must be
linked in order to resolve these external references. Did you put the names of the library(ies) in
the Input section of the Linker settings?
"Meena" <radha.sharma@gmail.com> wrote in message
news:1168922289.978580.124400@38g2000cwa.googlegroups.com...
Hi all,
I have a project developed by someone else in VC++.I have to build it
using VC++.Net. I have some experience in VC++, but very new to
VC++.Net. When I compile the code in Release mode I get this error. I
searched for the documentation available on the Net but nothing seems
to work. I having been trying this for days and now my deadline is
approaching please help I need to get this out very soon.
The output window reads like this
Creating library .\../../../../binaries/release_62/RDB.lib and object
.\../../../../binaries/release_62/RDB.exp
RDB_UDS.obj : error LNK2019: unresolved external symbol
"__declspec(dllimport) public: static char const * __cdecl
ACE::dirname(char const *,char)" (__imp_?dirname@ACE@@SAPBDPBDD@Z)
referenced in function "public: class ACE_Refcounted_Auto_Ptr<class
RDB::DataSource,class ACE_Null_Mutex> __thiscall
RDB::DSHolder::makeNew(class std::basic_string<char,struct
std::char_traits<char>,class std::allocator<char> > const &,class
std::basic_string<char,struct std::char_traits<char>,class
std::allocator<char> > const &,class std::basic_string<char,struct
std::char_traits<char>,class std::allocator<char> > const &,class
std::basic_string<char,struct std::char_traits<char>,class
std::allocator<char> > const &)"
(?makeNew@DSHolder@RDB@@QAE?AV?$ACE_Refcounted_Auto_Ptr@VDataSource@RDB@@VACE_Null_Mutex@@@@ABV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@000@Z)
RDB_UDS.obj : error LNK2019: unresolved external symbol
"__declspec(dllimport) private: static struct HINSTANCE__ *
ACE_OS::win32_resource_module_"
(__imp_?win32_resource_module_@ACE_OS@@0PAUHINSTANCE__@@A) referenced
in function "public: class ACE_Refcounted_Auto_Ptr<class
RDB::DataSource,class ACE_Null_Mutex> __thiscall
RDB::DSHolder::makeNew(class std::basic_string<char,struct
std::char_traits<char>,class std::allocator<char> > const &,class
std::basic_string<char,struct std::char_traits<char>,class
std::allocator<char> > const &,class std::basic_string<char,struct
std::char_traits<char>,class std::allocator<char> > const &,class
std::basic_string<char,struct std::char_traits<char>,class
std::allocator<char> > const &)"
(?makeNew@DSHolder@RDB@@QAE?AV?$ACE_Refcounted_Auto_Ptr@VDataSource@RDB@@VACE_Null_Mutex@@@@ABV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@000@Z)
SQLOutputVisitor.obj : error LNK2019: unresolved external symbol
"__declspec(dllimport) public: __thiscall
ACE_Null_Mutex::~ACE_Null_Mutex(void)"
(__imp_??1ACE_Null_Mutex@@QAE@XZ) referenced in function "public:
virtual void __thiscall SQL::OutputVisitor::visit_NodeDual(class
SQLImpl::NodeDual &)"
(?visit_NodeDual@OutputVisitor@SQL@@UAEXAAVNodeDual@SQLImpl@@@Z)
SQLOutputVisitor.obj : error LNK2019: unresolved external symbol
"__declspec(dllimport) public: __thiscall ACE_Guard<class
ACE_Null_Mutex>::~ACE_Guard<class ACE_Null_Mutex>(void)"
(__imp_??1?$ACE_Guard@VACE_Null_Mutex@@@@QAE@XZ) referenced in function
"public: virtual void __thiscall
SQL::OutputVisitor::visit_NodeDual(class SQLImpl::NodeDual &)"
(?visit_NodeDual@OutputVisitor@SQL@@UAEXAAVNodeDual@SQLImpl@@@Z)
SQLOutputVisitor.obj : error LNK2019: unresolved external symbol
"__declspec(dllimport) public: int __thiscall ACE_Guard<class
ACE_Null_Mutex>::locked(void)"
(__imp_?locked@?$ACE_Guard@VACE_Null_Mutex@@@@QAEHXZ) referenced in
function "public: virtual void __thiscall
SQL::OutputVisitor::visit_NodeDual(class SQLImpl::NodeDual &)"
(?visit_NodeDual@OutputVisitor@SQL@@UAEXAAVNodeDual@SQLImpl@@@Z)
SQLOutputVisitor.obj : error LNK2019: unresolved external symbol
"__declspec(dllimport) public: __thiscall ACE_Guard<class
ACE_Null_Mutex>::ACE_Guard<class ACE_Null_Mutex>(class ACE_Null_Mutex
&)" (__imp_??0?$ACE_Guard@VACE_Null_Mutex@@@@QAE@AAVACE_Null_Mutex@@@Z)
referenced in function "public: virtual void __thiscall
SQL::OutputVisitor::visit_NodeDual(class SQLImpl::NodeDual &)"
(?visit_NodeDual@OutputVisitor@SQL@@UAEXAAVNodeDual@SQLImpl@@@Z)
.\../../../../binaries/release_62/RDB.dll : fatal error LNK1120: 6
unresolved externals.
As some documentation suggested , I went to project properties and
checked to see that all the directories are included.
Can someone help.Its very urgent.
Thanks in advance
RadhaSree