[SOLVED] Undefined reference for « vtable for myGLWidget »
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Hi,
first of all, I'm sorry but I don't use QtCreator. At the beginning, my project didn't need Qt so I began on the IDE NetBeans.
So this is my problem.
Here is the code : myGLWidget.h
@#ifndef MYGLWIDGET_H
#define MYGLWIDGET_H#include <QGLWidget>
#include <QTimer>
#include <QKeyEvent>class myGLWidget : public QGLWidget
{
Q_OBJECT
public:
explicit myGLWidget(int framesPerSecond = 0, QWidget *parent = 0, char *name = 0);
virtual void initializeGL() = 0;
virtual void resizeGL(int width, int height) = 0;
virtual void paintGL() = 0;
virtual void keyPressEvent( QKeyEvent *keyEvent );public slots:
virtual void timeOutSlot();private:
QTimer *t_Timer;};
#endif // MYGLWIDGET_H@
And myGLWidget.cpp :
@#include "myGLWidget.h"
myGLWidget::myGLWidget(int framesPerSecond, QWidget *parent, char *name) :
QGLWidget(parent)
{
setWindowTitle(QString::fromUtf8(name));
if(framesPerSecond == 0)
t_Timer = NULL;
else
{
int seconde = 1000; // 1 seconde = 1000 ms
int timerInterval = seconde / framesPerSecond;
t_Timer = new QTimer(this);
connect(t_Timer, SIGNAL(timeout()), this, SLOT(timeOutSlot()));
t_Timer->start( timerInterval );
}
}void myGLWidget::timeOutSlot()
{
}@On the properties, I have :
C++ Compiler :
Include Directories :
../../Qt/5.4/gcc_64/include
../../Qt/5.4/gcc_64/include/QtCore
../../Qt/5.4/gcc_64/include/QtGui
../../Qt/5.4/gcc_64/include/QtNetwork
../../Qt/5.4/gcc_64/include/QtQuick
../../Qt/5.4/gcc_64/include/QtQml
../../Qt/5.4/gcc_64/include/QtWidgetAnd in the linker :
Directories:
../../Qt/5.4/gcc_64/libLibraries:
Qt5Core
Qt5Gui
Qt5Network
Qt5Qml
Qt5OpenGL
Qt5OpenGLExtension
Qt5Quick
Qt5WidgetI also have an run-time directory for the librairies :
../../Qt/5.4/gcc_64/libThat's it. And I use QT 5.4.
So the problem is when I run the project. Here is the error :
@"/usr/bin/make" -f nbproject/Makefile-Debug.mk QMAKE= SUBPROJECTS= .build-conf
make[1]: entrant dans le répertoire « /home/sim/NetBeansProjects/KinectProjectMa1 »
"/usr/bin/make" -f nbproject/Makefile-Debug.mk dist/Debug/GNU-Linux-x86/kinectprojectma1
make[2]: entrant dans le répertoire « /home/sim/NetBeansProjects/KinectProjectMa1 »
mkdir -p dist/Debug/GNU-Linux-x86
g++ -fPIC -o dist/Debug/GNU-Linux-x86/kinectprojectma1 build/Debug/GNU-Linux-x86/_ext/1729875118/moc_discovery.o build/Debug/GNU-Linux-x86/_ext/1729875118/moc_huebridgeconnection.o build/Debug/GNU-Linux-x86/_ext/1729875118/moc_light.o build/Debug/GNU-Linux-x86/_ext/1729875118/moc_lightinterface.o build/Debug/GNU-Linux-x86/_ext/1729875118/moc_lights.o build/Debug/GNU-Linux-x86/Device.o build/Debug/GNU-Linux-x86/KinectDisplay.o build/Debug/GNU-Linux-x86/LedDevice.o build/Debug/GNU-Linux-x86/ListDevice.o build/Debug/GNU-Linux-x86/RgbDevice.o build/Debug/GNU-Linux-x86/SoundDevice.o build/Debug/GNU-Linux-x86/discovery.o build/Debug/GNU-Linux-x86/huebridgeconnection.o build/Debug/GNU-Linux-x86/light.o build/Debug/GNU-Linux-x86/lights.o build/Debug/GNU-Linux-x86/main.o build/Debug/GNU-Linux-x86/myGLWidget.o -L/usr/local/lib -L/usr/lib/x86_64-linux-gnu -L../../Qt/5.4/gcc_64/lib -Wl,-rpath,../../Qt/5.4/gcc_64/lib -lGLU -lglut -lopenal -lOpenNI -lGL -lalut -lQt5Core -lQt5Gui -lQt5OpenGL -lQt5OpenGLExtensions -lQt5Network -lQt5Qml -lQt5Quick -lQt5Widgets -lQtCore -lQtGui -lQtNetwork -lQtOpenGL
build/Debug/GNU-Linux-x86/myGLWidget.o: dans la fonction « myGLWidget::myGLWidget(int, QWidget*, char*) »:
/home/sim/NetBeansProjects/KinectProjectMa1/myGLWidget.cpp:11: référence indéfinie vers « vtable for myGLWidget »
/home/sim/NetBeansProjects/KinectProjectMa1/myGLWidget.cpp:11: référence indéfinie vers « vtable for myGLWidget »
collect2: error: ld returned 1 exit status
make[2]: *** [dist/Debug/GNU-Linux-x86/kinectprojectma1] Erreur 1
make[2]: quittant le répertoire « /home/sim/NetBeansProjects/KinectProjectMa1 »
make[1]: *** [.build-conf] Erreur 2
make[1]: quittant le répertoire « /home/sim/NetBeansProjects/KinectProjectMa1 »
make: *** [.build-impl] Erreur 2@As you guess, I don't know why I have this error. If you could help me !
Thank you
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Hi and welcome to devnet,
You likely added the Q_OBJECT macro after first building your software. Re-run qmake and build again. You whould then be good to go
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Thank you for your quick response.
I guess I juste have to run qmake on my project's directory ? (with no option ?)
I just tried but after that, I got a new weird error.In another file on my project I have :
@#include <XnCppWrapper.h>@
situated here : ./usr/include/ni/XnCppWrapper.h
And in my include directories I have : ./usr/include/ni
And when I run the project I got :
@g++ -c -m64 -pipe -O2 -Wall -W -D_REENTRANT -DQT_NO_DEBUG -DQT_GUI_LIB -DQT_CORE_LIB -DQT_SHARED -I/usr/share/qt4/mkspecs/linux-g++-64 -I. -I/usr/include/qt4/QtCore -I/usr/include/qt4/QtGui -I/usr/include/qt4 -I. -I. -o Device.o Device.cpp
In file included from Device.cpp:8:0:
Device.h:11:26: fatal error: XnCppWrapper.h: Aucun fichier ou dossier de ce type
^
compilation terminated.
@I guess I made a mistake with qmake ?
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Do you have that path in your pro file ?
Something like:
@
INCLUDEPATH += /usr/include/ni
@ -
I added it.
To make it easier, I create a new project on QtCreator.
I added all the librairies (I think) by right clicking on the project, add librairies, extern librairies ...
So the last error are correct now. I have a last one and a 'warning'.Now this line
@virtual void keyPressEvent( QKeyEvent keyEvent );@
in my file above give me an error :
@/home/sim/build-ProjectMA1-Desktop_Qt_5_4_0_GCC_64bit-Debug/moc_myglwidget.o:-1: erreur : undefined reference to `myGLWidget::keyPressEvent(QKeyEvent)'@And the warning is :
@The /home/sim/build-ProjectMA1-Desktop_Qt_5_4_0_GCC_64bit-Debug/moc_huebridgeconnection.cpp file was deleted outside of Qt Creator. Do you want to save it under a different name or close the editor?@but I didn't touch anything ...
Thank for your help
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You didn't implement keyPressEvent
moc files are regenerated when you modify your class so if you happen to have it opened in Qt Creator you will have this warning
