Developing an app with wxWidgets even though im fairly new too the library, and need some help fixing these linker problem;
i tried google first with no luck.
1>mainwindow.obj : error LNK2001: unresolved external symbol "char const * const wxTreeListCtrlNameStr" (?wxTreeListCtrlNameStr##3QBDB)
1>mainwindow.obj : error LNK2001: unresolved external symbol "protected: virtual class wxEventHashTable & __thiscall wxTreeListCtrl::GetEventHashTable(void)const " (?GetEventHashTable#wxTreeListCtrl##MBEAAVwxEventHashTable##XZ)
1>mainwindow.obj : error LNK2001: unresolved external symbol "protected: virtual struct wxEventTable const * __thiscall wxTreeListCtrl::GetEventTable(void)const " (?GetEventTable#wxTreeListCtrl##MBEPBUwxEventTable##XZ)
1>mainwindow.obj : error LNK2001: unresolved external symbol "private: int __thiscall wxTreeListCtrl::DoInsertColumn(class wxString const &,int,int,enum wxAlignment,int)" (?DoInsertColumn#wxTreeListCtrl##AAEHABVwxString##HHW4wxAlignment##H#Z)
1>mainwindow.obj : error LNK2001: unresolved external symbol "private: virtual class wxWindowList __thiscall wxTreeListCtrl::GetCompositeWindowParts(void)const " (?GetCompositeWindowParts#wxTreeListCtrl##EBE?AVwxWindowList##XZ)
1>mainwindow.obj : error LNK2001: unresolved external symbol "private: void __thiscall wxTreeListCtrl::Init(void)" (?Init#wxTreeListCtrl##AAEXXZ)
1>mainwindow.obj : error LNK2001: unresolved external symbol "public: virtual __thiscall wxTreeListCtrl::~wxTreeListCtrl(void)" (??1wxTreeListCtrl##UAE#XZ)
1>mainwindow.obj : error LNK2001: unresolved external symbol "public: bool __thiscall wxTreeListCtrl::Create(class wxWindow *,int,class wxPoint const &,class wxSize const &,long,class wxString const &)" (?Create#wxTreeListCtrl##QAE_NPAVwxWindow##HABVwxPoint##ABVwxSize##JABVwxString###Z)
i tried to format this into a code, but its so hard to do on this site
You need to include the advanced library in the list of wx libraries linked to.
This is mentioned in the wxTreeListCtrl documentation at http://docs.wxwidgets.org/trunk/classwx_tree_list_ctrl.html
The documentation of every wxwidgets class mentions which library needs to be linked with when you use the class.
Related
I'm trying to compile the zeromq sources and I have the following error:
I'm using Visual studio 2013 update 4 / windows 7 x64
First of all I compile the libsodium library satisfactorily.
Then I link the libsodium header files directory path to additional dependencies and libsodium.lib to additional library directories. I also specify the name of library in additional dependencies.
I try to compile it under win32 architecture and x64 architecture but I get the same errors.
I know that a __imp prefix is used as a bridge to the function that I want to use so if I linked the libraries appropiately why do I get this error?
Console log:
1>Creating library E:\zmq\libzmq\builds\msvc\vs2013\libzmq\..\..\..\..\bin\Win32\Debug\v120\dynamic\libzmq.lib and object E:\zmq\libzmq\builds\msvc\vs2013\libzmq\..\..\..\..\bin\Win32\Debug\v120\dynamic\libzmq.exp
1>ctx.obj : error LNK2019: unresolved external symbol __imp__randombytes_close referenced in function "public: __thiscall zmq::ctx_t::~ctx_t(void)" (??1ctx_t#zmq##QAE#XZ)
1>curve_client.obj : error LNK2019: unresolved external symbol __imp__sodium_init referenced in function "public: __thiscall zmq::curve_client_t::curve_client_t(struct zmq::options_t const &)" (??0curve_client_t#zmq##QAE#ABUoptions_t#1##Z)
1>curve_server.obj : error LNK2001: unresolved external symbol __imp__sodium_init
1>curve_client.obj : error LNK2019: unresolved external symbol __imp__crypto_box_keypair referenced in function "public: __thiscall zmq::curve_client_t::curve_client_t(struct zmq::options_t const &)" (??0curve_client_t#zmq##QAE#ABUoptions_t#1##Z)
1>curve_server.obj : error LNK2001: unresolved external symbol __imp__crypto_box_keypair
1>zmq_utils.obj : error LNK2001: unresolved external symbol __imp__crypto_box_keypair
1>curve_client.obj : error LNK2019: unresolved external symbol __imp__crypto_box_beforenm referenced in function "private: int __thiscall zmq::curve_client_t::process_welcome(unsigned char const *,unsigned int)" (?process_welcome#curve_client_t#zmq##AAEHPBEI#Z)
1>curve_server.obj : error LNK2001: unresolved external symbol __imp__crypto_box_beforenm
1>curve_client.obj : error LNK2019: unresolved external symbol __imp__crypto_box referenced in function "private: int __thiscall zmq::curve_client_t::produce_hello(class zmq::msg_t *)" (?produce_hello#curve_client_t#zmq##AAEHPAVmsg_t#2##Z)
1>curve_server.obj : error LNK2001: unresolved external symbol __imp__crypto_box
1>curve_client.obj : error LNK2019: unresolved external symbol __imp__crypto_box_open referenced in function "private: int __thiscall zmq::curve_client_t::process_welcome(unsigned char const *,unsigned int)" (?process_welcome#curve_client_t#zmq##AAEHPBEI#Z)
1>curve_server.obj : error LNK2001: unresolved external symbol __imp__crypto_box_open
1>curve_client.obj : error LNK2019: unresolved external symbol __imp__crypto_box_afternm referenced in function "public: virtual int __thiscall zmq::curve_client_t::encode(class zmq::msg_t *)" (?encode#curve_client_t#zmq##UAEHPAVmsg_t#2##Z)
1>curve_server.obj : error LNK2001: unresolved external symbol __imp__crypto_box_afternm
1>curve_client.obj : error LNK2019: unresolved external symbol __imp__crypto_box_open_afternm referenced in function "public: virtual int __thiscall zmq::curve_client_t::decode(class zmq::msg_t *)" (?decode#curve_client_t#zmq##UAEHPAVmsg_t#2##Z)
1>curve_server.obj : error LNK2001: unresolved external symbol __imp__crypto_box_open_afternm
1>curve_client.obj : error LNK2019: unresolved external symbol __imp__randombytes referenced in function "private: int __thiscall zmq::curve_client_t::produce_initiate(class zmq::msg_t *)" (?produce_initiate#curve_client_t#zmq##AAEHPAVmsg_t#2##Z)
1>curve_server.obj : error LNK2001: unresolved external symbol __imp__randombytes
1>curve_server.obj : error LNK2019: unresolved external symbol __imp__crypto_secretbox referenced in function "private: int __thiscall zmq::curve_server_t::produce_welcome(class zmq::msg_t *)" (?produce_welcome#curve_server_t#zmq##AAEHPAVmsg_t#2##Z)
1>curve_server.obj : error LNK2019: unresolved external symbol __imp__crypto_secretbox_open referenced in function "private: int __thiscall zmq::curve_server_t::process_initiate(class zmq::msg_t *)" (?process_initiate#curve_server_t#zmq##AAEHPAVmsg_t#2##Z)
Thanks in advance.
You're probably compiling libsodium in a static way.
Try to compile it dinamically and link it again.
Such errors are also able to occur when you have a wrong set calling convention at your project.
I am using json-cpp lib to build another dll project in Visual studio 2008.
Linker settings :
output file is a dll
Input tab : I have added the json cpp lib in additional dependencies
I get the following unresolved symbols given below
Also tried defining JSON_DLL to JSON_API, but it didnt work.
If there is a fix for this problem?
.. error LNK2001: unresolved external symbol "protected: bool cdecl Json::ValueIteratorBase::isEqual(class Json::ValueIteratorBase const &)const " (?isEqual#ValueIteratorBase#Json##IEBA_NAEBV12##Z)
.. error LNK2001: unresolved external symbol "protected: void cdecl Json::ValueIteratorBase::increment(void)" (?increment#ValueIteratorBase#Json##IEAAXXZ)
.. error LNK2001: unresolved external symbol "protected: class Json::Value & cdecl Json::ValueIteratorBase::deref(void)const " (?deref#ValueIteratorBase#Json##IEBAAEAVValue#2#XZ)
.. error LNK2001: unresolved external symbol "public: cdecl Json::ValueIterator::ValueIterator(class Json::ValueIterator const &)" (??0ValueIterator#Json##QEAA#AEBV01##Z)
.. error LNK2001: unresolved external symbol "public: virtual class _STL::basic_string,class _STL::allocator > cdecl Json::FastWriter::write(class Json::Value const &)" (?write#FastWriter#Json##UEAA?AV?$basic_string#DU?$char_traits#D#std##V?$allocator#D#_STL###_STL##AEBVValue#2##Z)
.. error LNK2001: unresolved external symbol "public: class _STL::basic_string,class _STL::allocator > cdecl Json::Value::asString(void)const " (?asString#Value#Json##QEBA?AV?$basic_string#DU?$char_traits#D#std##V?$allocator#D#_STL###_STL##XZ)
.. error LNK2001: unresolved external symbol "public: class Json::Value cdecl Json::ValueIteratorBase::key(void)const " (?key#ValueIteratorBase#Json##QEBA?AVValue#2#XZ)
.. error LNK2001: unresolved external symbol "public: class Json::Value & cdecl Json::Value::operator" (??AValue#Json##QEAAAEAV01#AEBV?$basic_string#DU?$char_traits#D#std##V?$allocator#D#_STL###_STL###Z)
.. error LNK2001: unresolved external symbol "public: class Json::Value & cdecl Json::Value::operator" (??AValue#Json##QEAAAEAV01#AEBV?$basic_string#DU?$char_traits#D#std##V?$allocator#D#_STL###_STL###Z)
.. error LNK2001: unresolved external symbol "public: bool cdecl Json::Reader::parse(class _STL::basic_string,class _STL::allocator > const &,class Json::Value &,bool)" (?parse#Reader#Json##QEAA_NAEBV?$basic_string#DU?$char_traits#D#std##V?$allocator#D#_STL###_STL##AEAVValue#2#_N#Z)
This question already has answers here:
What is an undefined reference/unresolved external symbol error and how do I fix it?
(39 answers)
Closed 6 years ago.
I'm a beginner C++ programmer. I'm trying Google Test in Visual Studio 2012 and have problem starting a demo source code I got from internet.
int CompareChar(char* ch1, char* ch2)
{
if (ch1 == NULL || ch2 == NULL)
return 88;
return strcmp(ch1, ch2);
}
TEST(CompareCharTest, InputChar) {
// Expect equal
EXPECT_EQ(0, CompareChar("hello", "hello"));
// Expect not equal
EXPECT_NE(0, CompareChar("hello", "world"));
}
TEST(SampleClassTest, InputNumber) {
SampleClass sample(10);
EXPECT_EQ(1, sample.CompareValue(10)); // Expect equal
}
int _tmain(int argc, _TCHAR* argv[])
{
::testing::InitGoogleTest(&argc, argv);
int i = RUN_ALL_TESTS();
getchar();
return i;
}
So, when I try to build the code, it generates dozens of linking errors which I couldn't sort out. I tried to include .lib files in the property of the project but couldn't solve it.
The error:
>1>------ Build started: Project: GTestSample, Configuration: Release Win32 ------
>1> stdafx.cpp
1> GTestSample.cpp
1>GTestSample.obj : error LNK2001: unresolved external symbol "public: class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > __thiscall testing::Message::GetString(void)const " (?GetString#Message#testing##QBE?AV?$basic_string#DU?$char_traits#D#std##V?$allocator#D#2##std##XZ)
1>GTestSample.obj : error LNK2001: unresolved external symbol "public: __thiscall testing::Message::Message(void)" (??0Message#testing##QAE#XZ)
1>GTestSample.obj : error LNK2001: unresolved external symbol "public: static class testing::UnitTest * __cdecl testing::UnitTest::GetInstance(void)" (?GetInstance#UnitTest#testing##SAPAV12#XZ)
1>GTestSample.obj : error LNK2001: unresolved external symbol "public: int __thiscall testing::UnitTest::Run(void)" (?Run#UnitTest#testing##QAEHXZ)
1>GTestSample.obj : error LNK2001: unresolved external symbol "protected: __thiscall testing::Test::Test(void)" (??0Test#testing##IAE#XZ)
1>GTestSample.obj : error LNK2001: unresolved external symbol "public: virtual __thiscall testing::Test::~Test(void)" (??1Test#testing##UAE#XZ)
1>GTestSample.obj : error LNK2001: unresolved external symbol "class testing::TestInfo * __cdecl testing::internal::MakeAndRegisterTestInfo(char const *,char const *,char const *,char const *,void const *,void (__cdecl*)(void),void (__cdecl*)(void),class testing::internal::TestFactoryBase *)" (?MakeAndRegisterTestInfo#internal#testing##YAPAVTestInfo#2#PBD000PBXP6AXXZ2PAVTestFactoryBase#12##Z)
1>GTestSample.obj : error LNK2001: unresolved external symbol "void const * __cdecl testing::internal::GetTestTypeId(void)" (?GetTestTypeId#internal#testing##YAPBXXZ)
1>GTestSample.obj : error LNK2001: unresolved external symbol "public: void __thiscall testing::internal::AssertHelper::operator=(class testing::Message const &)const " (??4AssertHelper#internal#testing##QBEXABVMessage#2##Z)
1>GTestSample.obj : error LNK2001: unresolved external symbol "public: __thiscall testing::internal::AssertHelper::AssertHelper(enum testing::TestPartResult::Type,char const *,int,char const *)" (??0AssertHelper#internal#testing##QAE#W4Type#TestPartResult#2#PBDH1#Z)
1>GTestSample.obj : error LNK2001: unresolved external symbol "public: __thiscall testing::internal::AssertHelper::~AssertHelper(void)" (??1AssertHelper#internal#testing##QAE#XZ)
1>GTestSample.obj : error LNK2001: unresolved external symbol "void __cdecl testing::InitGoogleTest(int *,wchar_t * *)" (?InitGoogleTest#testing##YAXPAHPAPA_W#Z)
1>GTestSample.obj : error LNK2001: unresolved external symbol "bool __cdecl testing::internal::IsTrue(bool)" (?IsTrue#internal#testing##YA_N_N#Z)
1>GTestSample.obj : error LNK2001: unresolved external symbol "class testing::AssertionResult __cdecl testing::AssertionSuccess(void)" (?AssertionSuccess#testing##YA?AVAssertionResult#1#XZ)
1>GTestSample.obj : error LNK2001: unresolved external symbol "public: __thiscall testing::AssertionResult::AssertionResult(class testing::AssertionResult const &)" (??0AssertionResult#testing##QAE#ABV01##Z)
1>GTestSample.obj : error LNK2001: unresolved external symbol "class testing::AssertionResult __cdecl testing::AssertionFailure(void)" (?AssertionFailure#testing##YA?AVAssertionResult#1#XZ)
1>GTestSample.obj : error LNK2001: unresolved external symbol "class testing::AssertionResult __cdecl testing::internal::EqFailure(char const *,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 &,bool)" (?EqFailure#internal#testing##YA?AVAssertionResult#2#PBD0ABV?$basic_string#DU?$char_traits#D#std##V?$allocator#D#2##std##1_N#Z)
1>GTestSample.obj : error LNK2001: unresolved external symbol "protected: virtual void __thiscall testing::Test::SetUp(void)" (?SetUp#Test#testing##MAEXXZ)
1>GTestSample.obj : error LNK2001: unresolved external symbol "protected: virtual void __thiscall testing::Test::TearDown(void)" (?TearDown#Test#testing##MAEXXZ)
1>D:\VisualStudioProj\GTestSample\Release\GTestSample.exe : fatal error LNK1120: 19 unresolved externals
========== Build: 0 succeeded, 1 failed, 0 up-to-date, 0 skipped ==========
I had the same issue. Make sure that in your test project's properties, you go into Project->Linker->General settings and add the msvc/Release directory to Additional Directories. Furthermore, under Linker->Input, add gtest.lib into Additional Dependencies. Then you should be good to go!
I know this post is old, but it could still help anyone out. A quick Google search for "LNK2019 unresolved external symbol "bool __cdecl testing::internal::IsTrue ..." as stated above gives this stackoverflow and several sites with the same answers.
For those that tried Oleg Vaskevich solution or similar and failed, try this. If you are using Visual Studio, C/C++ -> General -> Additional Include Directories and make sure that the gtest is included. Secondly, (which will likely be your answer), copy the gtest-all.cc in the gtest/scr/ folder and paste in your project directory (wherever your .cpp/.h files are saved), then go back to Visual Studio and include it in your project. You will have to unhide files/folders to view it. 'Include to project'.
I know that copying and pasting this isn't ideal for every project, but the point is to at least get it working and making sure this is the true problem and not something else.
Because I never complied my version, I never had any lib files to begin with.
This is the first time I have attempted to create a .dll, that will be used as a plugin to a 3rd party app.
I created a .dll project in VS210...New Project -> Win32 Console Application -> .dll + Empty Project options.
Then I added in the files I wanted to use and included the various include / dependency libs the code required. Furthermore, set the linker to include the output .lib
Configuration Properties -> Linker -> Advanced -> Import Library - $(OutDir)$(TargetName).lib
While the .lib is successfully compiled, as soon as VS tries to then build the .dll I get a load of "unresolved external symbol" errors relating to all the defined function names.
ClCompile:
SOMPlugin.cpp
Link:
Creating library F:\Data\My Documents\Visual Studio 2010\Projects\Plugin-SOM - Copy\Release\Plugin-SOM.lib and object F:\Data\My Documents\Visual Studio 2010\Projects\Plugin-SOM - Copy\Release\Plugin-SOM.exp
SOMPlugin.obj : error LNK2001: unresolved external symbol "public: virtual struct QMetaObject const * __thiscall SOMPlugin::metaObject(void)const " (?metaObject#SOMPlugin##UBEPBUQMetaObject##XZ)
SOMPlugin.obj : error LNK2001: unresolved external symbol "public: virtual void * __thiscall SOMPlugin::qt_metacast(char const *)" (?qt_metacast#SOMPlugin##UAEPAXPBD#Z)
SOMPlugin.obj : error LNK2001: unresolved external symbol "public: virtual int __thiscall SOMPlugin::qt_metacall(enum QMetaObject::Call,int,void * *)" (?qt_metacall#SOMPlugin##UAEHW4Call#QMetaObject##HPAPAX#Z)
SOMPlugin.obj : error LNK2001: unresolved external symbol "protected: virtual void __thiscall SOMPlugin::updateView(void)" (?updateView#SOMPlugin##MAEXXZ)
SOMPlugin.obj : error LNK2001: unresolved external symbol "protected: virtual void __thiscall SOMPlugin::updatedObject(int,class UpdateType const &)" (?updatedObject#SOMPlugin##MAEXHABVUpdateType###Z)
SOMPlugin.obj : error LNK2001: unresolved external symbol "protected: virtual void __thiscall SOMPlugin::addToolbox(class QString,class QWidget *)" (?addToolbox#SOMPlugin##MAEXVQString##PAVQWidget###Z)
SOMPlugin.obj : error LNK2001: unresolved external symbol "protected: virtual void __thiscall SOMPlugin::log(class QString)" (?log#SOMPlugin##MAEXVQString###Z)
SOMPlugin.obj : error LNK2001: unresolved external symbol "protected: virtual void __thiscall SOMPlugin::log(enum Logtype,class QString)" (?log#SOMPlugin##MAEXW4Logtype##VQString###Z)
SOMPlugin.obj : error LNK2019: unresolved external symbol "public: virtual __thiscall SOMPlugin::~SOMPlugin(void)" (??1SOMPlugin##UAE#XZ) referenced in function "public: virtual void * __thiscall SOMPlugin::`scalar deleting destructor'(unsigned int)" (??_GSOMPlugin##UAEPAXI#Z)
SOMPlugin.obj : error LNK2001: unresolved external symbol "public: static struct QMetaObject const SOMPlugin::staticMetaObject" (?staticMetaObject#SOMPlugin##2UQMetaObject##B)
F:\Data\My Documents\Visual Studio 2010\Projects\Plugin-SOM\Release\Plugin-SOM.dll : fatal error LNK1120: 9 unresolved externals
Any help would be much appreciated.
The lib will be generated even if you get linker errors. Let's look at one:
SOMPlugin.obj : error LNK2001: unresolved external symbol "public:
virtual struct QMetaObject const * __thiscall
SOMPlugin::metaObject(void)const "
(?metaObject#SOMPlugin##UBEPBUQMetaObject##XZ)
This is telling you that you haven't implemented the method SOMPlugin::metaObject(void)const. Have you?
The rest are similar, other than
SOMPlugin.obj : error LNK2001: unresolved external symbol "public:
static struct QMetaObject const SOMPlugin::staticMetaObject"
(?staticMetaObject#SOMPlugin##2UQMetaObject##B)
In this case, you need a definition for the static member outside the class definition, in an implementation file.
I can't figure out why I'm getting these errors. I'm using Qt 4.7.4. I'm trying to make a client/server program which uses sockets to communicate. I have working code (works in visual studio 2008) with the winsock2 library. This code refuses to work with Qt, I tried for a a couple of days. I keep getting linker errors, so I decided to try to start from scratch with QTcpSocket. I included all the required include paths in the .pro file, and I am getting linker errors.
This is my client class:
toplevelcomms.h
#ifndef TOPLEVELCOMMS_H
#define TOPLEVELCOMMS_H
#include <QObject>
#include "inireader.h"
#include "WinSock2.h"
#include <QDialog>
#include <qtcpsocket.h>
#include <qhostaddress.h>
/** This class sends/receives information through sockets.
*
*/
class TopLevelComms : public QObject
{
Q_OBJECT
public:
TopLevelComms(QString hostIP, quint16 hostPort);
void connect();
private:
QTcpSocket *tcpSocket;
QHostAddress hostAddress;
quint16 hostPort;
};
#endif // TOPLEVELCOMMS_H
toplevelcomms.cpp
#include "toplevelcomms.h"
#include "stdio.h"
TopLevelComms::TopLevelComms(QString hostIP, quint16 hostPort)
{
tcpSocket = new QTcpSocket();
hostAddress.setAddress(hostIP);
this->hostPort = hostPort;
}
void TopLevelComms::connect(){
//tcpSocket->connectToHost();
}
This is the .pro file
include( $${PWD}/../qwtbuild.pri )
include( $${PWD}/../qwtconfig.pri )
QT += core gui
TARGET = TSLSuite
TEMPLATE = app
... // *all my files are declared here*
CONFIG += qwt
INCLUDEPATH += $${PWD}/../include
INCLUDEPATH += C:/QtSDK/Desktop/Qt/4.7.4/msvc2008/include/Qt
INCLUDEPATH += C:/QtSDK/Simulator/Qt/msvc2008/bin
INCLUDEPATH += C:/QtSDK/Simulator/Qt/msvc2008/include/QtNetwork
LIBS += -LC:/Qwt-6.0.1/lib -lqwt
LIBS += -LC:/Qt/4.7.4/lib -lQtSvg
This is the output :
11:33:57: Running build steps for project TSLSuite...
11:33:57: Configuration unchanged, skipping qmake step.
11:33:57: Starting: "C:\QtSDK\QtCreator\bin\jom.exe"
C:\QtSDK\QtCreator\bin\jom.exe -nologo -j 2 -f Makefile.Release all
linking release\TSLSuite.exe
toplevelcomms.obj : error LNK2019: unresolved external symbol "__declspec(dllimport) public: __thiscall QHostAddress::~QHostAddress(void)" (__imp_??1QHostAddress##QAE#XZ) referenced in function __unwindfunclet$??0TopLevelComms##QAE#VQString##G#Z$0
toplevelcomms.obj : error LNK2019: unresolved external symbol "__declspec(dllimport) public: bool __thiscall QHostAddress::setAddress(class QString const &)" (__imp_?setAddress#QHostAddress##QAE_NABVQString###Z) referenced in function "public: __thiscall TopLevelComms::TopLevelComms(class QString,unsigned short)" (??0TopLevelComms##QAE#VQString##G#Z)
toplevelcomms.obj : error LNK2019: unresolved external symbol "__declspec(dllimport) public: __thiscall QTcpSocket::QTcpSocket(class QObject *)" (__imp_??0QTcpSocket##QAE#PAVQObject###Z) referenced in function "public: __thiscall TopLevelComms::TopLevelComms(class QString,unsigned short)" (??0TopLevelComms##QAE#VQString##G#Z)
toplevelcomms.obj : error LNK2019: unresolved external symbol "__declspec(dllimport) public: __thiscall QHostAddress::QHostAddress(void)" (__imp_??0QHostAddress##QAE#XZ) referenced in function "public: __thiscall TopLevelComms::TopLevelComms(class QString,unsigned short)" (??0TopLevelComms##QAE#VQString##G#Z)
toplevelcomms.obj : error LNK2001: unresolved external symbol "public: virtual struct QMetaObject const * __thiscall QTcpSocket::metaObject(void)const " (?metaObject#QTcpSocket##UBEPBUQMetaObject##XZ)
toplevelcomms.obj : error LNK2001: unresolved external symbol "public: virtual void * __thiscall QTcpSocket::qt_metacast(char const *)" (?qt_metacast#QTcpSocket##UAEPAXPBD#Z)
toplevelcomms.obj : error LNK2001: unresolved external symbol "public: virtual int __thiscall QTcpSocket::qt_metacall(enum QMetaObject::Call,int,void * *)" (?qt_metacall#QTcpSocket##UAEHW4Call#QMetaObject##HPAPAX#Z)
toplevelcomms.obj : error LNK2001: unresolved external symbol "public: virtual bool __thiscall QAbstractSocket::isSequential(void)const " (?isSequential#QAbstractSocket##UBE_NXZ)
toplevelcomms.obj : error LNK2001: unresolved external symbol "public: virtual void __thiscall QAbstractSocket::close(void)" (?close#QAbstractSocket##UAEXXZ)
toplevelcomms.obj : error LNK2001: unresolved external symbol "public: virtual bool __thiscall QAbstractSocket::atEnd(void)const " (?atEnd#QAbstractSocket##UBE_NXZ)
toplevelcomms.obj : error LNK2001: unresolved external symbol "public: virtual __int64 __thiscall QAbstractSocket::bytesAvailable(void)const " (?bytesAvailable#QAbstractSocket##UBE_JXZ)
toplevelcomms.obj : error LNK2001: unresolved external symbol "public: virtual __int64 __thiscall QAbstractSocket::bytesToWrite(void)const " (?bytesToWrite#QAbstractSocket##UBE_JXZ)
toplevelcomms.obj : error LNK2001: unresolved external symbol "public: virtual bool __thiscall QAbstractSocket::canReadLine(void)const " (?canReadLine#QAbstractSocket##UBE_NXZ)
toplevelcomms.obj : error LNK2001: unresolved external symbol "public: virtual bool __thiscall QAbstractSocket::waitForReadyRead(int)" (?waitForReadyRead#QAbstractSocket##UAE_NH#Z)
toplevelcomms.obj : error LNK2001: unresolved external symbol "public: virtual bool __thiscall QAbstractSocket::waitForBytesWritten(int)" (?waitForBytesWritten#QAbstractSocket##UAE_NH#Z)
toplevelcomms.obj : error LNK2001: unresolved external symbol "protected: virtual __int64 __thiscall QAbstractSocket::readData(char *,__int64)" (?readData#QAbstractSocket##MAE_JPAD_J#Z)
toplevelcomms.obj : error LNK2001: unresolved external symbol "protected: virtual __int64 __thiscall QAbstractSocket::readLineData(char *,__int64)" (?readLineData#QAbstractSocket##MAE_JPAD_J#Z)
toplevelcomms.obj : error LNK2001: unresolved external symbol "protected: virtual __int64 __thiscall QAbstractSocket::writeData(char const *,__int64)" (?writeData#QAbstractSocket##MAE_JPBD_J#Z)
toplevelcomms.obj : error LNK2019: unresolved external symbol "__declspec(dllimport) public: virtual __thiscall QTcpSocket::~QTcpSocket(void)" (__imp_??1QTcpSocket##UAE#XZ) referenced in function "public: virtual void * __thiscall QTcpSocket::`scalar deleting destructor'(unsigned int)" (??_GQTcpSocket##UAEPAXI#Z)
release\TSLSuite.exe : fatal error LNK1120: 19 unresolved externals
jom 1.0.6 - empower your cores
command failed with exit code 1120
command failed with exit code 2
11:33:58: The process "C:\QtSDK\QtCreator\bin\jom.exe" exited with code 2.
Error while building project TSLSuite (target: Desktop)
When executing build step 'Make'
I've been getting many frustrating problems with Qt...I can never seem to find out how to properly add libraries, and every new thing I try takes forever to get working...am I missing something??
Please answer the following questions:
What is wrong with my current code, and how do I fix it?
What am I doing wrong with Qt? Why is it so hard for me to use new libraries and classes?
In your .pro file you need to add the network module:
QT += core gui network