qt编译出现的异常(一)

最近在编写程序时,我使用了第三方插件qwt,正常安装之后,在编译项目时出现了下列情况:

./debug\curvewidgetclass.o: In function `CurveWidgetClass':

E:\RemoteMonitorPromoteV4.0\RemoteMonitorPromoteV42/curvewidgetclass.cpp:5: undefined reference to `_imp___ZN7QwtPlotC2EP7QWidget'

E:\RemoteMonitorPromoteV4.0\RemoteMonitorPromoteV42/curvewidgetclass.cpp:8: undefined reference to `_imp___ZN7QwtPlot6canvasEv'

E:\RemoteMonitorPromoteV4.0\RemoteMonitorPromoteV42/curvewidgetclass.cpp:8: undefined reference to `_imp___ZN13QwtPlotPannerC1EP13QwtPlotCanvas'

E:\RemoteMonitorPromoteV4.0\RemoteMonitorPromoteV42/curvewidgetclass.cpp:11: undefined reference to `_imp___ZN7QwtPlot6canvasEv'

E:\RemoteMonitorPromoteV4.0\RemoteMonitorPromoteV42/curvewidgetclass.cpp:11: undefined reference to `_imp___ZN16QwtPlotMagnifierC1EP13QwtPlotCanvas'

E:\RemoteMonitorPromoteV4.0\RemoteMonitorPromoteV42/curvewidgetclass.cpp:17: undefined reference to `_imp___ZN7QwtPlot8setTitleERK7QString'

E:\RemoteMonitorPromoteV4.0\RemoteMonitorPromoteV42/curvewidgetclass.cpp:18: undefined reference to `_imp___ZN9QwtLegendC1EP7QWidget'

E:\RemoteMonitorPromoteV4.0\RemoteMonitorPromoteV42/curvewidgetclass.cpp:18: undefined reference to `_imp___ZN7QwtPlot12insertLegendEP9QwtLegendNS_14LegendPositionEd'

E:\RemoteMonitorPromoteV4.0\RemoteMonitorPromoteV42/curvewidgetclass.cpp:21: undefined reference to `_imp___ZN7QwtPlot12setAxisTitleEiRK7QString'

E:\RemoteMonitorPromoteV4.0\RemoteMonitorPromoteV42/curvewidgetclass.cpp:22: undefined reference to `_imp___ZN7QwtPlot12setAxisScaleEiddd'

E:\RemoteMonitorPromoteV4.0\RemoteMonitorPromoteV42/curvewidgetclass.cpp:24: undefined reference to `_imp___ZN7QwtPlot12setAxisTitleEiRK7QString'

E:\RemoteMonitorPromoteV4.0\RemoteMonitorPromoteV42/curvewidgetclass.cpp:25: undefined reference to `_imp___ZN7QwtPlot12setAxisScaleEiddd'

E:\RemoteMonitorPromoteV4.0\RemoteMonitorPromoteV42/curvewidgetclass.cpp:28: undefined reference to `_imp___ZN7QwtPlot6canvasEv'

E:\RemoteMonitorPromoteV4.0\RemoteMonitorPromoteV42/curvewidgetclass.cpp:29: undefined reference to `_imp___ZN7QwtPlot6canvasEv'

E:\RemoteMonitorPromoteV4.0\RemoteMonitorPromoteV42/curvewidgetclass.cpp:30: undefined reference to `_imp___ZN7QwtPlot6canvasEv'

E:\RemoteMonitorPromoteV4.0\RemoteMonitorPromoteV42/curvewidgetclass.cpp:30: undefined reference to `_imp___ZN13QwtPlotCanvas15setBorderRadiusEd'

E:\RemoteMonitorPromoteV4.0\RemoteMonitorPromoteV42/curvewidgetclass.cpp:34: undefined reference to `_imp___ZN7QwtPlot6canvasEv'

E:\RemoteMonitorPromoteV4.0\RemoteMonitorPromoteV42/curvewidgetclass.cpp:36: undefined reference to `_imp___ZN11QwtPlotGridC1Ev'

E:\RemoteMonitorPromoteV4.0\RemoteMonitorPromoteV42/curvewidgetclass.cpp:37: undefined reference to `_imp___ZN11QwtPlotGrid10enableXMinEb'

E:\RemoteMonitorPromoteV4.0\RemoteMonitorPromoteV42/curvewidgetclass.cpp:38: undefined reference to `_imp___ZN11QwtPlotGrid9setMajPenERK4QPen'

E:\RemoteMonitorPromoteV4.0\RemoteMonitorPromoteV42/curvewidgetclass.cpp:39: undefined reference to `_imp___ZN11QwtPlotGrid9setMinPenERK4QPen'

E:\RemoteMonitorPromoteV4.0\RemoteMonitorPromoteV42/curvewidgetclass.cpp:40: undefined reference to `_imp___ZN11QwtPlotItem6attachEP7QwtPlot'

E:\RemoteMonitorPromoteV4.0\RemoteMonitorPromoteV42/curvewidgetclass.cpp:45: undefined reference to `_imp___ZN12QwtPlotCurveC1ERK7QString'

E:\RemoteMonitorPromoteV4.0\RemoteMonitorPromoteV42/curvewidgetclass.cpp:46: undefined reference to `_imp___ZN11QwtPlotItem13setRenderHintENS_10RenderHintEb'

E:\RemoteMonitorPromoteV4.0\RemoteMonitorPromoteV42/curvewidgetclass.cpp:47: undefined reference to `_imp___ZN12QwtPlotCurve18setLegendAttributeENS_15LegendAttributeEb'

E:\RemoteMonitorPromoteV4.0\RemoteMonitorPromoteV42/curvewidgetclass.cpp:48: undefined reference to `_imp___ZN11QwtPlotItem6attachEP7QwtPlot'

E:\RemoteMonitorPromoteV4.0\RemoteMonitorPromoteV42/curvewidgetclass.cpp:53: undefined reference to `_imp___ZN13QwtPlotMarkerC1Ev'

E:\RemoteMonitorPromoteV4.0\RemoteMonitorPromoteV42/curvewidgetclass.cpp:54: undefined reference to `_imp___ZN7QwtTextC1ERK7QStringNS_10TextFormatE'

E:\RemoteMonitorPromoteV4.0\RemoteMonitorPromoteV42/curvewidgetclass.cpp:54: undefined reference to `_imp___ZN13QwtPlotMarker8setLabelERK7QwtText'

E:\RemoteMonitorPromoteV4.0\RemoteMonitorPromoteV42/curvewidgetclass.cpp:54: undefined reference to `_imp___ZN7QwtTextD1Ev'

E:\RemoteMonitorPromoteV4.0\RemoteMonitorPromoteV42/curvewidgetclass.cpp:55: undefined reference to `_imp___ZN13QwtPlotMarker17setLabelAlignmentE6QFlagsIN2Qt13AlignmentFlagEE'

E:\RemoteMonitorPromoteV4.0\RemoteMonitorPromoteV42/curvewidgetclass.cpp:56: undefined reference to `_imp___ZN13QwtPlotMarker12setLineStyleENS_9LineStyleE'

E:\RemoteMonitorPromoteV4.0\RemoteMonitorPromoteV42/curvewidgetclass.cpp:57: undefined reference to `_imp___ZN13QwtPlotMarker9setYValueEd'

E:\RemoteMonitorPromoteV4.0\RemoteMonitorPromoteV42/curvewidgetclass.cpp:58: undefined reference to `_imp___ZN11QwtPlotItem6attachEP7QwtPlot'

E:\RemoteMonitorPromoteV4.0\RemoteMonitorPromoteV42/curvewidgetclass.cpp:61: undefined reference to `_imp___ZN13QwtPlotMarkerC1Ev'

E:\RemoteMonitorPromoteV4.0\RemoteMonitorPromoteV42/curvewidgetclass.cpp:62: undefined reference to `_imp___ZN7QwtTextC1ERK7QStringNS_10TextFormatE'

E:\RemoteMonitorPromoteV4.0\RemoteMonitorPromoteV42/curvewidgetclass.cpp:62: undefined reference to `_imp___ZN13QwtPlotMarker8setLabelERK7QwtText'

E:\RemoteMonitorPromoteV4.0\RemoteMonitorPromoteV42/curvewidgetclass.cpp:62: undefined reference to `_imp___ZN7QwtTextD1Ev'

E:\RemoteMonitorPromoteV4.0\RemoteMonitorPromoteV42/curvewidgetclass.cpp:63: undefined reference to `_imp___ZN13QwtPlotMarker17setLabelAlignmentE6QFlagsIN2Qt13AlignmentFlagEE'

E:\RemoteMonitorPromoteV4.0\RemoteMonitorPromoteV42/curvewidgetclass.cpp:64: undefined reference to `_imp___ZN13QwtPlotMarker19setLabelOrientationEN2Qt11OrientationE'

E:\RemoteMonitorPromoteV4.0\RemoteMonitorPromoteV42/curvewidgetclass.cpp:65: undefined reference to `_imp___ZN13QwtPlotMarker12setLineStyleENS_9LineStyleE'

E:\RemoteMonitorPromoteV4.0\RemoteMonitorPromoteV42/curvewidgetclass.cpp:66: undefined reference to `_imp___ZN13QwtPlotMarker10setLinePenERK4QPen'

E:\RemoteMonitorPromoteV4.0\RemoteMonitorPromoteV42/curvewidgetclass.cpp:67: undefined reference to `_imp___ZN13QwtPlotMarker9setXValueEd'

E:\RemoteMonitorPromoteV4.0\RemoteMonitorPromoteV42/curvewidgetclass.cpp:68: undefined reference to `_imp___ZN11QwtPlotItem6attachEP7QwtPlot'

E:\RemoteMonitorPromoteV4.0\RemoteMonitorPromoteV42/curvewidgetclass.cpp:54: undefined reference to `_imp___ZN7QwtTextD1Ev'

E:\RemoteMonitorPromoteV4.0\RemoteMonitorPromoteV42/curvewidgetclass.cpp:62: undefined reference to `_imp___ZN7QwtTextD1Ev'

E:\RemoteMonitorPromoteV4.0\RemoteMonitorPromoteV42/curvewidgetclass.cpp:5: undefined reference to `_imp___ZN7QwtPlotD2Ev'

./debug\curvewidgetclass.o: In function `ZN16CurveWidgetClass8populateEP7QVectorIdES0_I7QStringEi':

E:\RemoteMonitorPromoteV4.0\RemoteMonitorPromoteV42/curvewidgetclass.cpp:85: undefined reference to `_imp___ZN12QwtPlotCurve6setPenERK4QPen'

E:\RemoteMonitorPromoteV4.0\RemoteMonitorPromoteV42/curvewidgetclass.cpp:86: undefined reference to `_imp___ZN11QwtPlotItem8setTitleERK7QString'

E:\RemoteMonitorPromoteV4.0\RemoteMonitorPromoteV42/curvewidgetclass.cpp:89: undefined reference to `_imp___ZN12QwtPlotCurve6setPenERK4QPen'

E:\RemoteMonitorPromoteV4.0\RemoteMonitorPromoteV42/curvewidgetclass.cpp:90: undefined reference to `_imp___ZN11QwtPlotItem8setTitleERK7QString'

E:\RemoteMonitorPromoteV4.0\RemoteMonitorPromoteV42/curvewidgetclass.cpp:93: undefined reference to `_imp___ZN12QwtPlotCurve6setPenERK4QPen'

E:\RemoteMonitorPromoteV4.0\RemoteMonitorPromoteV42/curvewidgetclass.cpp:94: undefined reference to `_imp___ZN11QwtPlotItem8setTitleERK7QString'

E:\RemoteMonitorPromoteV4.0\RemoteMonitorPromoteV42/curvewidgetclass.cpp:97: undefined reference to `_imp___ZN12QwtPlotCurve6setPenERK4QPen'

E:\RemoteMonitorPromoteV4.0\RemoteMonitorPromoteV42/curvewidgetclass.cpp:98: undefined reference to `_imp___ZN11QwtPlotItem8setTitleERK7QString'

E:\RemoteMonitorPromoteV4.0\RemoteMonitorPromoteV42/curvewidgetclass.cpp:101: undefined reference to `_imp___ZN12QwtPlotCurve6setPenERK4QPen'

E:\RemoteMonitorPromoteV4.0\RemoteMonitorPromoteV42/curvewidgetclass.cpp:102: undefined reference to `_imp___ZN11QwtPlotItem8setTitleERK7QString'

E:\RemoteMonitorPromoteV4.0\RemoteMonitorPromoteV42/curvewidgetclass.cpp:105: undefined reference to `_imp___ZN12QwtPlotCurve6setPenERK4QPen'

E:\RemoteMonitorPromoteV4.0\RemoteMonitorPromoteV42/curvewidgetclass.cpp:106: undefined reference to `_imp___ZN11QwtPlotItem8setTitleERK7QString'

E:\RemoteMonitorPromoteV4.0\RemoteMonitorPromoteV42/curvewidgetclass.cpp:109: undefined reference to `_imp___ZN12QwtPlotCurve6setPenERK4QPen'

E:\RemoteMonitorPromoteV4.0\RemoteMonitorPromoteV42/curvewidgetclass.cpp:110: undefined reference to `_imp___ZN11QwtPlotItem8setTitleERK7QString'

E:\RemoteMonitorPromoteV4.0\RemoteMonitorPromoteV42/curvewidgetclass.cpp:113: undefined reference to `_imp___ZN12QwtPlotCurve6setPenERK4QPen'

E:\RemoteMonitorPromoteV4.0\RemoteMonitorPromoteV42/curvewidgetclass.cpp:114: undefined reference to `_imp___ZN11QwtPlotItem8setTitleERK7QString'

E:\RemoteMonitorPromoteV4.0\RemoteMonitorPromoteV42/curvewidgetclass.cpp:133: undefined reference to `_imp___ZN12QwtPlotCurve10setSamplesERK7QVectorIdES3_'

E:\RemoteMonitorPromoteV4.0\RemoteMonitorPromoteV42/curvewidgetclass.cpp:135: undefined reference to `_imp___ZN7QwtPlot16setAxisScaleDrawEiP12QwtScaleDraw'

E:\RemoteMonitorPromoteV4.0\RemoteMonitorPromoteV42/curvewidgetclass.cpp:136: undefined reference to `_imp___ZN7QwtPlot20setAxisLabelRotationEid'

./debug\curvewidgetclass.o: In function `ZN16CurveWidgetClass11resizeEventEP12QResizeEvent':

E:\RemoteMonitorPromoteV4.0\RemoteMonitorPromoteV42/curvewidgetclass.cpp:167: undefined reference to `_imp___ZN7QwtPlot11resizeEventEP12QResizeEvent'

./debug\curvewidgetclass.o: In function `TimeScaleDraw':

E:\RemoteMonitorPromoteV4.0\RemoteMonitorPromoteV42/curvewidgetclass.h:28: undefined reference to `_imp___ZN12QwtScaleDrawC2Ev'

E:\RemoteMonitorPromoteV4.0\RemoteMonitorPromoteV42/curvewidgetclass.h:30: undefined reference to `_imp___ZN20QwtAbstractScaleDraw13setTickLengthEN11QwtScaleDiv8TickTypeEd'

E:\RemoteMonitorPromoteV4.0\RemoteMonitorPromoteV42/curvewidgetclass.h:31: undefined reference to `_imp___ZN20QwtAbstractScaleDraw13setTickLengthEN11QwtScaleDiv8TickTypeEd'

E:\RemoteMonitorPromoteV4.0\RemoteMonitorPromoteV42/curvewidgetclass.h:32: undefined reference to `_imp___ZN20QwtAbstractScaleDraw13setTickLengthEN11QwtScaleDiv8TickTypeEd'

E:\RemoteMonitorPromoteV4.0\RemoteMonitorPromoteV42/curvewidgetclass.h:34: undefined reference to `_imp___ZN20QwtAbstractScaleDraw10setSpacingEd'

E:\RemoteMonitorPromoteV4.0\RemoteMonitorPromoteV42/curvewidgetclass.h:28: undefined reference to `_imp___ZN12QwtScaleDrawD2Ev'

./debug\curvewidgetclass.o: In function `ZNK13TimeScaleDraw5labelEd':

E:\RemoteMonitorPromoteV4.0\RemoteMonitorPromoteV42/curvewidgetclass.h:39: undefined reference to `_imp___ZN7QwtTextC1ERK7QStringNS_10TextFormatE'

./debug\curvewidgetclass.o:curvewidgetclass.cpp:(.rdata$_ZTV13TimeScaleDraw[vtable for TimeScaleDraw]+0x10): undefined reference to `QwtAbstractScaleDraw::draw(QPainter*, QPalette const&) const'

./debug\curvewidgetclass.o:curvewidgetclass.cpp:(.rdata$_ZTV13TimeScaleDraw[vtable for TimeScaleDraw]+0x18): undefined reference to `QwtScaleDraw::extent(QFont const&) const'

./debug\curvewidgetclass.o:curvewidgetclass.cpp:(.rdata$_ZTV13TimeScaleDraw[vtable for TimeScaleDraw]+0x1c): undefined reference to `QwtScaleDraw::drawTick(QPainter*, double, double) const'

./debug\curvewidgetclass.o:curvewidgetclass.cpp:(.rdata$_ZTV13TimeScaleDraw[vtable for TimeScaleDraw]+0x20): undefined reference to `QwtScaleDraw::drawBackbone(QPainter*) const'

./debug\curvewidgetclass.o:curvewidgetclass.cpp:(.rdata$_ZTV13TimeScaleDraw[vtable for TimeScaleDraw]+0x24): undefined reference to `QwtScaleDraw::drawLabel(QPainter*, double) const'

./debug\curvewidgetclass.o: In function `~TimeScaleDraw':

E:\RemoteMonitorPromoteV4.0\RemoteMonitorPromoteV42/curvewidgetclass.h:25: undefined reference to `_imp___ZN12QwtScaleDrawD2Ev'

E:\RemoteMonitorPromoteV4.0\RemoteMonitorPromoteV42/curvewidgetclass.h:25: undefined reference to `_imp___ZN12QwtScaleDrawD2Ev'

./debug\moc_curvewidgetclass.o: In function `ZN16CurveWidgetClass11qt_metacastEPKc':

E:\RemoteMonitorPromoteV4.0\RemoteMonitorPromoteV42/debug/moc_curvewidgetclass.cpp:71: undefined reference to `_imp___ZN7QwtPlot11qt_metacastEPKc'

./debug\moc_curvewidgetclass.o: In function `ZN16CurveWidgetClass11qt_metacallEN11QMetaObject4CallEiPPv':

E:\RemoteMonitorPromoteV4.0\RemoteMonitorPromoteV42/debug/moc_curvewidgetclass.cpp:76: undefined reference to `_imp___ZN7QwtPlot11qt_metacallEN11QMetaObject4CallEiPPv'

./debug\moc_curvewidgetclass.o: In function `_static_initialization_and_destruction_0':

E:\RemoteMonitorPromoteV4.0\RemoteMonitorPromoteV42/debug/moc_curvewidgetclass.cpp:55: undefined reference to `_imp___ZN7QwtPlot16staticMetaObjectE'

./debug\moc_curvewidgetclass.o:moc_curvewidgetclass.cpp:(.rdata$_ZTV16CurveWidgetClass[vtable for CurveWidgetClass]+0x1c): undefined reference to `QwtPlot::event(QEvent*)'

./debug\moc_curvewidgetclass.o:moc_curvewidgetclass.cpp:(.rdata$_ZTV16CurveWidgetClass[vtable for CurveWidgetClass]+0x40): undefined reference to `QwtPlot::sizeHint() const'

./debug\moc_curvewidgetclass.o:moc_curvewidgetclass.cpp:(.rdata$_ZTV16CurveWidgetClass[vtable for CurveWidgetClass]+0x44): undefined reference to `QwtPlot::minimumSizeHint() const'

./debug\moc_curvewidgetclass.o:moc_curvewidgetclass.cpp:(.rdata$_ZTV16CurveWidgetClass[vtable for CurveWidgetClass]+0xe8): undefined reference to `QwtPlot::canvasMap(int) const'

./debug\moc_curvewidgetclass.o:moc_curvewidgetclass.cpp:(.rdata$_ZTV16CurveWidgetClass[vtable for CurveWidgetClass]+0xec): undefined reference to `QwtPlot::updateLayout()'

./debug\moc_curvewidgetclass.o:moc_curvewidgetclass.cpp:(.rdata$_ZTV16CurveWidgetClass[vtable for CurveWidgetClass]+0xf0): undefined reference to `QwtPlot::drawCanvas(QPainter*)'

./debug\moc_curvewidgetclass.o:moc_curvewidgetclass.cpp:(.rdata$_ZTV16CurveWidgetClass[vtable for CurveWidgetClass]+0xf4): undefined reference to `QwtPlot::drawItems(QPainter*, QRectF const&, QwtScaleMap const*) const'

./debug\moc_curvewidgetclass.o:moc_curvewidgetclass.cpp:(.rdata$_ZTV16CurveWidgetClass[vtable for CurveWidgetClass]+0xf8): undefined reference to `QwtPlot::replot()'

./debug\moc_curvewidgetclass.o:moc_curvewidgetclass.cpp:(.rdata$_ZTV16CurveWidgetClass[vtable for CurveWidgetClass]+0xfc): undefined reference to `QwtPlot::legendItemClicked()'

./debug\moc_curvewidgetclass.o:moc_curvewidgetclass.cpp:(.rdata$_ZTV16CurveWidgetClass[vtable for CurveWidgetClass]+0x100): undefined reference to `QwtPlot::legendItemChecked(bool)'

./debug\moc_curvewidgetclass.o:moc_curvewidgetclass.cpp:(.rdata$_ZTV16CurveWidgetClass[vtable for CurveWidgetClass]+0x104): undefined reference to `QwtPlot::updateTabOrder()'

./debug\moc_curvewidgetclass.o: In function `~CurveWidgetClass':

E:\RemoteMonitorPromoteV4.0\RemoteMonitorPromoteV42/debug//../curvewidgetclass.h:45: undefined reference to `_imp___ZN7QwtPlotD2Ev'

collect2: ld returned 1 exit status

mingw32-make[1]: *** [debug\RemoteMonitorPromoteV42.exe] Error 1

mingw32-make: *** [debug] Error 2

09:30:04: 进程"D:\Qt\MinGW\bin\mingw32-make.exe"退出,退出代码 2 。

Error while building/deploying project RemoteMonitorPromoteV41 (target: 桌面)

When executing step 'Make'


让人百思不解,明明安装正确,为什么还出现找不到文件没有定义的情况?

最后我在项目文件中找到了问题,

 
 

 
 注意其中的 
 " "    
 的地方,因为我在其他项目中直接粘贴过来,而那个项目文件用的编码为系统默认编码,现在项目编码为UTF-8编码,一粘贴,我就悲剧了,IDE竟然把    "    转化为了中文版    “   !而不是英文,系统当然找不到库文件了! 
 

正确的是:

DEFINES += QT_DLL QWT_DLL
CONFIG(debug,debug|release):LIBS += -L"D:/Qt/qwt/lib" -lqwtd
 
 
 else:LIBS += -L"D:/Qt/qwt/lib" -lqwt
 
 
INCLUDEPATH+= D:/Qt/qwt/include


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