I'm compiling VLC 2.1.0 Source code in VS 2010 but getting some unresolved external symbols in help.obj file. The errors are as follows.
Error 54 error LNK2001: unresolved external symbol "public: virtual
struct QMetaObject const * __thiscall
UpdateDialog::metaObject(void)const "
(?metaObject#UpdateDialog##UBEPBUQMetaObject##XZ) D:\VidPlaya_offline\TryingToIncludeUpdateFacility\Vidplaya_Plugin_EmbeddedUpdate\vlcwin\lib_plugin\help.obj
Error 55 error LNK2001: unresolved external symbol "public: virtual
void * __thiscall UpdateDialog::qt_metacast(char const *)"
(?qt_metacast#UpdateDialog##UAEPAXPBD#Z) D:\VidPlaya_offline\TryingToIncludeUpdateFacility\Vidplaya_Plugin_EmbeddedUpdate\vlcwin\lib_plugin\help.obj
Error 56 error LNK2001: unresolved external symbol "public: virtual
int __thiscall UpdateDialog::qt_metacall(enum
QMetaObject::Call,int,void * *)"
(?qt_metacall#UpdateDialog##UAEHW4Call#QMetaObject##HPAPAX#Z) D:\VidPlaya_offline\TryingToIncludeUpdateFacility\Vidplaya_Plugin_EmbeddedUpdate\vlcwin\lib_plugin\help.obj
Error 57 error LNK1120: 3 unresolved
externals D:\VidPlaya_offline\TryingToIncludeUpdateFacility\Vidplaya_Plugin_EmbeddedUpdate\vlcwin\Release\plugins\lib_plugin.dll
I tried, Generating Meta Object file(help.moc.cpp) but it didn't help me.
Any suggestions would be appreciated. I'm new to this Win32 environment.
Related
After compiling everything, I get those errors on Visual C++ Studio 2010.
Probably I am missing any library? If it's that can you help me to guess which one?Err
1> Creating library \Bin\Engine.lib and object \Bin\Engine.exp
1>UILoginNew.obj : error LNK2001: unresolved external symbol "public: void __thiscall boost::thread::detach(void)" (?detach#thread#boost##QAEXXZ)
1>UILoginNew.obj : error LNK2001: unresolved external symbol "private: bool __thiscall boost::thread::start_thread_noexcept(void)" (?start_thread_noexcept#thread#boost##AAE_NXZ)
1>SMCSCAN.obj : error LNK2001: unresolved external symbol "class boost::system::error_category const & __cdecl boost::system::system_category(void)" (?system_category#system#boost##YAABVerror_category#12#XZ)
1>UILoginNew.obj : error LNK2001: unresolved external symbol "class boost::system::error_category const & __cdecl boost::system::system_category(void)" (?system_category#system#boost##YAABVerror_category#12#XZ)
1>NetClient.obj : error LNK2001: unresolved external symbol "class boost::system::error_category const & __cdecl boost::system::system_category(void)" (?system_category#system#boost##YAABVerror_category#12#XZ)
1>StdH.obj : error LNK2001: unresolved external symbol "class boost::system::error_category const & __cdecl boost::system::system_category(void)" (?system_category#system#boost##YAABVerror_category#12#XZ)
1>smcPars.obj : error LNK2001: unresolved external symbol "class boost::system::error_category const & __cdecl boost::system::system_category(void)" (?system_category#system#boost##YAABVerror_category#12#XZ)
1>UILoginNew.obj : error LNK2001: unresolved external symbol "public: virtual __thiscall boost::detail::thread_data_base::~thread_data_base(void)" (??1thread_data_base#detail#boost##UAE#XZ)
1>StdH.obj : error LNK2001: unresolved external symbol "class boost::system::error_category const & __cdecl boost::system::generic_category(void)" (?generic_category#system#boost##YAABVerror_category#12#XZ)
1>smcPars.obj : error LNK2001: unresolved external symbol "class boost::system::error_category const & __cdecl boost::system::generic_category(void)" (?generic_category#system#boost##YAABVerror_category#12#XZ)
1>SMCSCAN.obj : error LNK2001: unresolved external symbol "class boost::system::error_category const & __cdecl boost::system::generic_category(void)" (?generic_category#system#boost##YAABVerror_category#12#XZ)
1>\Bin\Engine.dll : fatal error LNK1120: 5 unresolved externals
========== Build: 0 succeeded, 1 failed, 0 up-to-date, 0 skipped ==========```
I fixed that by reinstalling Boost 1.58. 32 bits
Maybe I had x64 libs
After changing some files in project, following compilation error is coming. it seems it is unable to find library placement new operator.
resiprocate.lib(Contents.obj) : error LNK2001: unresolved external symbol "void * __cdecl >operator new(unsigned int,class resip::PoolBase *)" (??2#YAPAXIPAVPoolBase#resip###Z)
resiprocate.lib(ExistsOrDataParameter.obj) : error LNK2001: unresolved external symbol >"void * __cdecl operator new(unsigned int,class resip::PoolBase *)" (??>2#YAPAXIPAVPoolBase#resip###Z)
resiprocate.lib(StringCategory.obj) : error LNK2001: unresolved external symbol "void * >__cdecl operator new(unsigned int,class resip::PoolBase *)" (??>2#YAPAXIPAVPoolBase#resip###Z)
resiprocate.lib(Auth.obj) : error LNK2001: unresolved external symbol "void * __cdecl >operator new(unsigned int,class resip::PoolBase *)" (??2#YAPAXIPAVPoolBase#resip###Z)
resiprocate.lib(UInt32Category.obj) : error LNK2001: unresolved external symbol "void * >__cdecl operator new(unsigned int,class resip::PoolBase *)" (??
I am new to Openssl, and trying to run a dhclient program available online at http://www.josuegomes.com/codeblog/dhclient.htm.
While doing so I get following errors,
dhclient.cpp
1>dhclient.obj : error LNK2019: unresolved external symbol _ERR_print_errors_fp referenced in function "void __cdecl handle_error(char const *,int,char const *)" (?handle_error##YAXPBDH0#Z)
1>dhclient.obj : error LNK2019: unresolved external symbol _SSL_load_error_strings referenced in function "void __cdecl init_OpenSSL(void)" (?init_OpenSSL##YAXXZ)
1>dhclient.obj : error LNK2019: unresolved external symbol _SSL_library_init referenced in function "void __cdecl init_OpenSSL(void)" (?init_OpenSSL##YAXXZ)
1>dhclient.obj : error LNK2019: unresolved external symbol _SSL_CTX_set_cipher_list referenced in function "struct ssl_ctx_st * __cdecl setup_ctx(void)" (?setup_ctx##YAPAUssl_ctx_st##XZ)
1>dhclient.obj : error LNK2019: unresolved external symbol _SSL_CTX_new referenced in function "struct ssl_ctx_st * __cdecl setup_ctx(void)" (?setup_ctx##YAPAUssl_ctx_st##XZ)
1>dhclient.obj : error LNK2019: unresolved external symbol _TLSv1_client_method referenced in function "struct ssl_ctx_st * __cdecl setup_ctx(void)" (?setup_ctx##YAPAUssl_ctx_st##XZ)
1>dhclient.obj : error LNK2019: unresolved external symbol _SSL_CTX_free referenced in function _main
1>dhclient.obj : error LNK2019: unresolved external symbol _SSL_free referenced in function _main
1>dhclient.obj : error LNK2019: unresolved external symbol _SSL_shutdown referenced in function _main
1>dhclient.obj : error LNK2019: unresolved external symbol _SSL_read referenced in function _main
1>dhclient.obj : error LNK2019: unresolved external symbol _SSL_write referenced in function _main
1>dhclient.obj : error LNK2019: unresolved external symbol _SSL_connect referenced in function _main
1>dhclient.obj : error LNK2019: unresolved external symbol _SSL_set_bio referenced in function _main
1>dhclient.obj : error LNK2019: unresolved external symbol _SSL_new referenced in function _main
1>dhclient.obj : error LNK2019: unresolved external symbol _BIO_ctrl referenced in function _main
1>dhclient.obj : error LNK2019: unresolved external symbol _BIO_new_connect referenced in function _main
1>C:\Users\Rucha\Documents\Visual Studio 2010\Projects\emptyprojectssl\Debug\emptyprojectssl.exe : fatal error LNK1120: 16 unresolved externals
I have added includes and library paths, also my runtime library is MD and I have added ssleay32MD.lib
libeay32MD.lib to external dependencies.
Please help.
I had a similar issue and i solved.
Try to look if you are using the right libraries, i mean if you are using x64 lib and compiling with 32-bit then it will through the same error.
Happy Coding
I think the debug libs are ssleay32MDd.lib and libeay32MDd.lib (note the "d" suffix).
I trying to compile some OpenCv functions and I included the cvhaartraining.h from the directory C:\OpenCV2.2\modules\haartraining.
I put on Project > 'Your Project Name' Properties... > Configuration Properties > Linker > Input >
all the .lib files in the opencv library:
"C:\OpenCV2.2\lib\opencv_highgui220d.lib" "C:\OpenCV2.2\lib\opencv_core220d.lib" "C:\OpenCV2.2\lib\opencv_ml220d.lib" "C:\OpenCV2.2\lib\opencv_video220d.lib" "C:\OpenCV2.2\lib\opencv_legacy220d.lib" "C:\OpenCV2.2\lib\opencv_imgproc220d.lib" "C:\OpenCV2.2\lib\opencv_objdetect220d.lib" "C:\OpenCV2.2\lib\opencv_ts220.lib" "C:\OpenCV2.2\lib\opencv_calib3d220d.lib" "C:\OpenCV2.2\lib\opencv_contrib220d.lib" "C:\OpenCV2.2\lib\opencv_features2d220d.lib"
"C:\OpenCV2.2\lib\opencv_ffmpeg220d.lib" "C:\OpenCV2.2\lib\opencv_flann220d.lib" "C:\OpenCV2.2\lib\opencv_gpu220d.lib"
but it still won't link.
The error I get is:
vecToFiles.obj : error LNK2019: unresolved external symbol "void __cdecl cvShowVecSamples(char const *,int,int,double)" (?cvShowVecSamples##YAXPBDHHN#Z) referenced in function _main
vecToFiles.obj : error LNK2019: unresolved external symbol "int __cdecl cvCreateTrainingSamplesFromInfo(char const *,char const *,int,int,int,int)" (?cvCreateTrainingSamplesFromInfo##YAHPBD0HHHH#Z) referenced in function _main
vecToFiles.obj : error LNK2019: unresolved external symbol "void __cdecl cvCreateTestSamples(char const *,char const *,int,int,char const *,int,int,int,double,double,double,int,int,int)" (?cvCreateTestSamples##YAXPBD0HH0HHHNNNHHH#Z) referenced in function _main
vecToFiles.obj : error LNK2019: unresolved external symbol "void __cdecl cvCreateTrainingSamples(char const *,char const *,int,int,char const *,int,int,int,double,double,double,int,int,int)" (?cvCreateTrainingSamples##YAXPBD0HH0HHHNNNHHH#Z) referenced in function _main
vecToFiles\Debug\vecToFiles.exe : fatal error LNK1120: 4 unresolved externals
I think Im missing some .lib file, but I dont know which file.
Ill appreciate any help.
What extra lib files do you have? From googling it looks like it's compiled into a file called cvhaartraining.lib.
I am getting very strange errors and i am not able to understand what these errors actually mean when build my project in visual studio it gives me the following errors can anybody tells me what actually these error means i though that there are some configuration issues i am doing socket programming and network programming.
Here are the bunch of error your help weill be highly appreciated....
C:\Program Files (x86)\MSBuild\Microsoft.Cpp\v4.0\Microsoft.CppBuild.targets(990,5): warning MSB8012: TargetPath(E:\Study\FWIF\demola\ext-libs\libcommoncpp2-1.6.0\w32\Debug\ccgnu2.dll) does not match the Linker's OutputFile property value (E:\Study\FWIF\demola\ext-libs\libcommoncpp2-1.6.0\w32\Debug\CapeCommon14.dll). This may cause your project to build incorrectly. To correct this, please make sure that $(OutDir), $(TargetName) and $(TargetExt) property values match the value specified in %(Link.OutputFile).
1>C:\Program Files (x86)\MSBuild\Microsoft.Cpp\v4.0\Microsoft.CppBuild.targets(992,5): warning MSB8012: TargetName(ccgnu2) does not match the Linker's OutputFile property value (CapeCommon14). This may cause your project to build incorrectly. To correct this, please make sure that $(OutDir), $(TargetName) and $(TargetExt) property values match the value specified in %(Link.OutputFile).
1> Creating library E:\Study\FWIF\demola\ext-libs\libcommoncpp2-1.6.0\w32\Debug\CapeCommon14.lib and object E:\Study\FWIF\demola\ext-libs\libcommoncpp2-1.6.0\w32\Debug\CapeCommon14.exp
1>socket.obj : error LNK2019: unresolved external symbol "public: bool __thiscall ost::IPV4Cidr::isMember(struct sockaddr const *)const " (?isMember#IPV4Cidr#ost##QBE_NPBUsockaddr###Z) referenced in function "public: bool __thiscall ost::IPV4Cidr::operator==(struct sockaddr const *)const " (??8IPV4Cidr#ost##QBE_NPBUsockaddr###Z)
1>in6addr.obj : error LNK2001: unresolved external symbol "public: bool __thiscall ost::IPV4Cidr::isMember(struct sockaddr const *)const " (?isMember#IPV4Cidr#ost##QBE_NPBUsockaddr###Z)
1>inaddr.obj : error LNK2001: unresolved external symbol "public: bool __thiscall ost::IPV4Cidr::isMember(struct sockaddr const *)const " (?isMember#IPV4Cidr#ost##QBE_NPBUsockaddr###Z)
1>peer.obj : error LNK2001: unresolved external symbol "public: bool __thiscall ost::IPV4Cidr::isMember(struct sockaddr const *)const " (?isMember#IPV4Cidr#ost##QBE_NPBUsockaddr###Z)
1>simplesocket.obj : error LNK2001: unresolved external symbol "public: bool __thiscall ost::IPV4Cidr::isMember(struct sockaddr const *)const " (?isMember#IPV4Cidr#ost##QBE_NPBUsockaddr###Z)
1>socket.obj : error LNK2019: unresolved external symbol "public: bool __thiscall ost::IPV4Cidr::isMember(struct in_addr const &)const " (?isMember#IPV4Cidr#ost##QBE_NABUin_addr###Z) referenced in function "public: bool __thiscall ost::IPV4Cidr::operator==(struct in_addr const &)const " (??8IPV4Cidr#ost##QBE_NABUin_addr###Z)
1>in6addr.obj : error LNK2001: unresolved external symbol "public: bool __thiscall ost::IPV4Cidr::isMember(struct in_addr const &)const " (?isMember#IPV4Cidr#ost##QBE_NABUin_addr###Z)
1>inaddr.obj : error LNK2001: unresolved external symbol "public: bool __thiscall ost::IPV4Cidr::isMember(struct in_addr const &)const " (?isMember#IPV4Cidr#ost##QBE_NABUin_addr###Z)
1>peer.obj : error LNK2001: unresolved external symbol "public: bool __thiscall ost::IPV4Cidr::isMember(struct in_addr const &)const " (?isMember#IPV4Cidr#ost##QBE_NABUin_addr###Z)
1>simplesocket.obj : error LNK2001: unresolved external symbol "public: bool __thiscall ost::IPV4Cidr::isMember(struct in_addr const &)const " (?isMember#IPV4Cidr#ost##QBE_NABUin_addr###Z)
1>E:\Study\FWIF\demola\ext-libs\libcommoncpp2-1.6.0\w32\Debug\CapeCommon14.dll : fatal error LNK1120: 2 unresolved externals
2>------ Build started: Project: buffer, Configuration: Debug Win32 ------
2> buffer.cpp
2>e:\study\fwif\demola\ext-libs\libcommoncpp2-1.6.0\demo\buffer.cpp(41): fatal error C1083: Cannot open include file: 'cc++/buffer.h': No such file or directory
========== Build: 0 succeeded, 2 failed, 0 up-to-date, 0 skipped ==========
For the errors in project 1, it looks like you have to add a library to the build to resolve the function call ost::IPV4Cidr::isMember(struct sockaddr const *)const. Possibly you are compiling with the wrong calling conventions for a library that you already included.
For the compile error in project buffer, you need to add the include path for that file cc++/buffer.h to the project.