4. QT: make zickt rum

QT: make zickt rum

  • D

    Ich erhalte eine kryptische Fehlermeldung beim Kompilieren einer QT-Anwendung.

    #include <QtWidgets/QApplication>
#include <QtWidgets/QLabel>
#include <iostream>

using namespace std;

class MeinLabel : public QLabel 
{
	public:
		MeinLabel(const char* text) : QLabel(text)
		{

		}

		~MeinLabel()
		{
			cout << "Destruktoraufruf\n";
		}
};

int main(int argc, char *argv[])
{
	QApplication app(argc, argv);
	MeinLabel* mlabel = new MeinLabel("Erstes Qt-Programm");
	mlabel->show();
	int ergebnis = app.exec();
	delete mlabel;
	return ergebnis;
}

    Ausgeführte Befehle:

    qmake -project (funktioniert)
    qmake (funktioniert)
    make (liefert folgende Fehlermeldung)

    make -f Makefile.Release
make[1]: Entering directory 'D:/Henry Weinert/Lernen/QT/test'
g++ -c -fno-keep-inline-dllexport -pipe -O2 -std=gnu++11 -Wextra -Wall -W -fexceptions -mthreads -DUNICODE -DQT_DEPRECATED_WARNINGS -DQT_NO_DEBUG -DQT_GUI_LIB -DQT_CORE_LIB -DQT_NEEDS_QMAIN -I. -I. -I../../../../Qt/5.9.1/mingw53_32/include
-I../../../../Qt/5.9.1/mingw53_32/include/QtGui -I../../../../Qt/5.9.1/mingw53_32/include/QtANGLE -I../../../../Qt/5.9.1/mingw53_32/include/QtCore -Irelease -I../../../../Qt/5.9.1/mingw53_32/mkspecs/win32-g++  -o release/main.o main.cpp
g++ -Wl,-s -Wl,-subsystem,windows -mthreads -o release/test.exe release/main.o  -lmingw32 -LD:/Qt/5.9.1/mingw53_32/lib D:/Qt/5.9.1/mingw53_32/lib/libqtmain.a -LC:/utils/my_sql/my_sql/lib -LC:/utils/postgresql/pgsql/lib -lshell32 D:/Qt/5.9.1
/mingw53_32/lib/libQt5Core.a D:/Qt/5.9.1/mingw53_32/lib/libQt5Gui.a D:/Qt/5.9.1/mingw53_32/lib/libQt5Core.a
release/main.o:main.cpp:(.text+0x60): undefined reference to `_imp___ZN12QApplicationC1ERiPPci'
release/main.o:main.cpp:(.text+0xbe): undefined reference to `_imp___ZN6QLabelC2ERK7QStringP7QWidget6QFlagsIN2Qt10WindowTypeEE'
release/main.o:main.cpp:(.text+0xfc): undefined reference to `_imp___ZN7QWidget4showEv'
release/main.o:main.cpp:(.text+0x109): undefined reference to `_imp___ZN12QApplication4execEv'
release/main.o:main.cpp:(.text+0x158): undefined reference to `_imp___ZN6QLabelD2Ev'
release/main.o:main.cpp:(.text+0x16c): undefined reference to `_imp___ZN12QApplicationD1Ev'
release/main.o:main.cpp:(.text+0x1ee): undefined reference to `_imp___ZN12QApplicationD1Ev'
release/main.o:main.cpp:(.text$_ZN9MeinLabelD1Ev[__ZN9MeinLabelD1Ev]+0x58): undefined reference to `_imp___ZN6QLabelD2Ev'
release/main.o:main.cpp:(.text$_ZN9MeinLabelD0Ev[__ZN9MeinLabelD0Ev]+0x58): undefined reference to `_imp___ZN6QLabelD2Ev'
release/main.o:main.cpp:(.rdata$_ZTV9MeinLabel[__ZTV9MeinLabel]+0x8): undefined reference to `QLabel::metaObject() const'
release/main.o:main.cpp:(.rdata$_ZTV9MeinLabel[__ZTV9MeinLabel]+0xc): undefined reference to `QLabel::qt_metacast(char const*)'
release/main.o:main.cpp:(.rdata$_ZTV9MeinLabel[__ZTV9MeinLabel]+0x10): undefined reference to `QLabel::qt_metacall(QMetaObject::Call, int, void**)'
release/main.o:main.cpp:(.rdata$_ZTV9MeinLabel[__ZTV9MeinLabel]+0x1c): undefined reference to `QLabel::event(QEvent*)'
release/main.o:main.cpp:(.rdata$_ZTV9MeinLabel[__ZTV9MeinLabel]+0x38): undefined reference to `QWidget::devType() const'
release/main.o:main.cpp:(.rdata$_ZTV9MeinLabel[__ZTV9MeinLabel]+0x3c): undefined reference to `QWidget::setVisible(bool)'
release/main.o:main.cpp:(.rdata$_ZTV9MeinLabel[__ZTV9MeinLabel]+0x40): undefined reference to `QLabel::sizeHint() const'
release/main.o:main.cpp:(.rdata$_ZTV9MeinLabel[__ZTV9MeinLabel]+0x44): undefined reference to `QLabel::minimumSizeHint() const'
release/main.o:main.cpp:(.rdata$_ZTV9MeinLabel[__ZTV9MeinLabel]+0x48): undefined reference to `QLabel::heightForWidth(int) const'
release/main.o:main.cpp:(.rdata$_ZTV9MeinLabel[__ZTV9MeinLabel]+0x4c): undefined reference to `QWidget::hasHeightForWidth() const'
release/main.o:main.cpp:(.rdata$_ZTV9MeinLabel[__ZTV9MeinLabel]+0x50): undefined reference to `QWidget::paintEngine() const'
release/main.o:main.cpp:(.rdata$_ZTV9MeinLabel[__ZTV9MeinLabel]+0x54): undefined reference to `QLabel::mousePressEvent(QMouseEvent*)'
release/main.o:main.cpp:(.rdata$_ZTV9MeinLabel[__ZTV9MeinLabel]+0x58): undefined reference to `QLabel::mouseReleaseEvent(QMouseEvent*)'
release/main.o:main.cpp:(.rdata$_ZTV9MeinLabel[__ZTV9MeinLabel]+0x5c): undefined reference to `QWidget::mouseDoubleClickEvent(QMouseEvent*)'
release/main.o:main.cpp:(.rdata$_ZTV9MeinLabel[__ZTV9MeinLabel]+0x60): undefined reference to `QLabel::mouseMoveEvent(QMouseEvent*)'
release/main.o:main.cpp:(.rdata$_ZTV9MeinLabel[__ZTV9MeinLabel]+0x64): undefined reference to `QWidget::wheelEvent(QWheelEvent*)'
release/main.o:main.cpp:(.rdata$_ZTV9MeinLabel[__ZTV9MeinLabel]+0x68): undefined reference to `QLabel::keyPressEvent(QKeyEvent*)'
release/main.o:main.cpp:(.rdata$_ZTV9MeinLabel[__ZTV9MeinLabel]+0x6c): undefined reference to `QWidget::keyReleaseEvent(QKeyEvent*)'
release/main.o:main.cpp:(.rdata$_ZTV9MeinLabel[__ZTV9MeinLabel]+0x70): undefined reference to `QLabel::focusInEvent(QFocusEvent*)'
release/main.o:main.cpp:(.rdata$_ZTV9MeinLabel[__ZTV9MeinLabel]+0x74): undefined reference to `QLabel::focusOutEvent(QFocusEvent*)'
release/main.o:main.cpp:(.rdata$_ZTV9MeinLabel[__ZTV9MeinLabel]+0x78): undefined reference to `QWidget::enterEvent(QEvent*)'
release/main.o:main.cpp:(.rdata$_ZTV9MeinLabel[__ZTV9MeinLabel]+0x7c): undefined reference to `QWidget::leaveEvent(QEvent*)'
release/main.o:main.cpp:(.rdata$_ZTV9MeinLabel[__ZTV9MeinLabel]+0x80): undefined reference to `QLabel::paintEvent(QPaintEvent*)'
release/main.o:main.cpp:(.rdata$_ZTV9MeinLabel[__ZTV9MeinLabel]+0x84): undefined reference to `QWidget::moveEvent(QMoveEvent*)'
release/main.o:main.cpp:(.rdata$_ZTV9MeinLabel[__ZTV9MeinLabel]+0x88): undefined reference to `QWidget::resizeEvent(QResizeEvent*)'
release/main.o:main.cpp:(.rdata$_ZTV9MeinLabel[__ZTV9MeinLabel]+0x8c): undefined reference to `QWidget::closeEvent(QCloseEvent*)'
release/main.o:main.cpp:(.rdata$_ZTV9MeinLabel[__ZTV9MeinLabel]+0x90): undefined reference to `QLabel::contextMenuEvent(QContextMenuEvent*)'
release/main.o:main.cpp:(.rdata$_ZTV9MeinLabel[__ZTV9MeinLabel]+0x94): undefined reference to `QWidget::tabletEvent(QTabletEvent*)'
release/main.o:main.cpp:(.rdata$_ZTV9MeinLabel[__ZTV9MeinLabel]+0x98): undefined reference to `QWidget::actionEvent(QActionEvent*)'
release/main.o:main.cpp:(.rdata$_ZTV9MeinLabel[__ZTV9MeinLabel]+0x9c): undefined reference to `QWidget::dragEnterEvent(QDragEnterEvent*)'
release/main.o:main.cpp:(.rdata$_ZTV9MeinLabel[__ZTV9MeinLabel]+0xa0): undefined reference to `QWidget::dragMoveEvent(QDragMoveEvent*)'
release/main.o:main.cpp:(.rdata$_ZTV9MeinLabel[__ZTV9MeinLabel]+0xa4): undefined reference to `QWidget::dragLeaveEvent(QDragLeaveEvent*)'
release/main.o:main.cpp:(.rdata$_ZTV9MeinLabel[__ZTV9MeinLabel]+0xa8): undefined reference to `QWidget::dropEvent(QDropEvent*)'
release/main.o:main.cpp:(.rdata$_ZTV9MeinLabel[__ZTV9MeinLabel]+0xac): undefined reference to `QWidget::showEvent(QShowEvent*)'
release/main.o:main.cpp:(.rdata$_ZTV9MeinLabel[__ZTV9MeinLabel]+0xb0): undefined reference to `QWidget::hideEvent(QHideEvent*)'
release/main.o:main.cpp:(.rdata$_ZTV9MeinLabel[__ZTV9MeinLabel]+0xb4): undefined reference to `QWidget::nativeEvent(QByteArray const&, void*, long*)'
release/main.o:main.cpp:(.rdata$_ZTV9MeinLabel[__ZTV9MeinLabel]+0xb8): undefined reference to `QLabel::changeEvent(QEvent*)'
release/main.o:main.cpp:(.rdata$_ZTV9MeinLabel[__ZTV9MeinLabel]+0xbc): undefined reference to `QWidget::metric(QPaintDevice::PaintDeviceMetric) const'
release/main.o:main.cpp:(.rdata$_ZTV9MeinLabel[__ZTV9MeinLabel]+0xc0): undefined reference to `QWidget::initPainter(QPainter*) const'
release/main.o:main.cpp:(.rdata$_ZTV9MeinLabel[__ZTV9MeinLabel]+0xc4): undefined reference to `QWidget::redirected(QPoint*) const'
release/main.o:main.cpp:(.rdata$_ZTV9MeinLabel[__ZTV9MeinLabel]+0xc8): undefined reference to `QWidget::sharedPainter() const'
release/main.o:main.cpp:(.rdata$_ZTV9MeinLabel[__ZTV9MeinLabel]+0xcc): undefined reference to `QWidget::inputMethodEvent(QInputMethodEvent*)'
release/main.o:main.cpp:(.rdata$_ZTV9MeinLabel[__ZTV9MeinLabel]+0xd0): undefined reference to `QWidget::inputMethodQuery(Qt::InputMethodQuery) const'
release/main.o:main.cpp:(.rdata$_ZTV9MeinLabel[__ZTV9MeinLabel]+0xd4): undefined reference to `QLabel::focusNextPrevChild(bool)'
release/main.o:main.cpp:(.rdata$_ZTV9MeinLabel[__ZTV9MeinLabel]+0xe8): undefined reference to `non-virtual thunk to QWidget::devType() const'
release/main.o:main.cpp:(.rdata$_ZTV9MeinLabel[__ZTV9MeinLabel]+0xec): undefined reference to `non-virtual thunk to QWidget::paintEngine() const'
release/main.o:main.cpp:(.rdata$_ZTV9MeinLabel[__ZTV9MeinLabel]+0xf0): undefined reference to `non-virtual thunk to QWidget::metric(QPaintDevice::PaintDeviceMetric) const'
release/main.o:main.cpp:(.rdata$_ZTV9MeinLabel[__ZTV9MeinLabel]+0xf4): undefined reference to `non-virtual thunk to QWidget::initPainter(QPainter*) const'
release/main.o:main.cpp:(.rdata$_ZTV9MeinLabel[__ZTV9MeinLabel]+0xf8): undefined reference to `non-virtual thunk to QWidget::redirected(QPoint*) const'
release/main.o:main.cpp:(.rdata$_ZTV9MeinLabel[__ZTV9MeinLabel]+0xfc): undefined reference to `non-virtual thunk to QWidget::sharedPainter() const'
collect2.exe: error: ld returned 1 exit status
Makefile.Release:63: recipe for target 'release/test.exe' failed
make[1]: *** [release/test.exe] Error 1
make[1]: Leaving directory 'D:/Henry Weinert/Lernen/QT/test'
Makefile:36: recipe for target 'release' failed
make: *** [release] Error 2

    Wo ist der Fehler?

    0
  • S

    Sieht auf den ersten Blick so aus, als ob du dem Linker nicht sagst in welcher Bibliothek sich die Funktionen befinden.

    0
  • M

    Und wie schaut das erzeugte *.pro File aus?

    0
  • D

    test.pro

    ######################################################################
# Automatically generated by qmake (3.1) Wed Jul 5 09:23:21 2017
######################################################################

TEMPLATE = app
TARGET = test
INCLUDEPATH += .

# The following define makes your compiler warn you if you use any
# feature of Qt which has been marked as deprecated (the exact warnings
# depend on your compiler). Please consult the documentation of the
# deprecated API in order to know how to port your code away from it.
DEFINES += QT_DEPRECATED_WARNINGS

# You can also make your code fail to compile if you use deprecated APIs.
# In order to do so, uncomment the following line.
# You can also select to disable deprecated APIs only up to a certain version of Qt.
#DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0x060000    # disables all the APIs deprecated before Qt 6.0.0

# Input
SOURCES += main.cpp
    0
  • C

    Dieser Thread wurde von Moderator/in rapso aus dem Forum Spiele-/Grafikprogrammierung in das Forum Andere GUIs - Qt, GTK+, wxWidgets verschoben.

    Im Zweifelsfall bitte auch folgende Hinweise beachten:
    C/C++ Forum :: FAQ - Sonstiges :: Wohin mit meiner Frage?

    Dieses Posting wurde automatisch erzeugt.

    0 

  • QT += widgets
    0
  • D

    Danke, er kompiliert jetzt und liefert auch eine ausführbare Datei. Allerdings erhalte ich, wenn ich da Programm starten will, weitere Fehlermeldungen (Windows 7)

    Ohne Administratorrechte:

    Das Programm kann nicht gestartet werden, da libgcc_s_sjlj-1.dll auf dem Computer fehlt. Installieren Sie das Programm erneut, um das Problem zu beheben.

    Mit:

    ---------------------------
test.exe - Einsprungpunkt nicht gefunden
---------------------------
Der Prozedureinsprungpunkt "__gxx_personality_sj0" wurde in der DLL "libstdc++-6.dll" nicht gefunden.
    0

  • s. meine Links unter [gelöst] Debug geht, Release .exe nicht

    0
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