Проект Qt Creator испорчен

Question

Я пытаюсь добавить crypto++ библиотеку в Qt проект в QtCreator IDE. Я допустил ошибку, добавив crypto++ источников для проекта вместо добавления библиотеки .so. Таким образом, я удалил каталог crypto++ из проектов qt, чтобы восстановить состояние проекта pre-crypto ++, которое скомпилировано и связано без проблем. Перед крипто ++ Я также добавил QCustomPlot и скомпилирован и построен проект без каких-либо errors.Now я не могу перекомпилировать и перестроить проект больше из-за следующих ошибок:

09:19:42: Running steps for project ueTestProject... 
09:19:42: Configuration unchanged, skipping qmake step. 
09:19:42: Starting: "/usr/bin/make" 
g++ -Wl,-rpath,/opt/Qt/5.4/gcc_64 -Wl,-rpath,/opt/Qt/5.4/gcc_64/lib -o ueTestProject main.o cmainwindow.o ueborderlayout.o uecentralwidget.o qcustomplot.o uegraphwidget.o uetopmerchandisewidget.o uetopmerchandiseview.o uepossesttings.o -L/opt/Qt/5.4/gcc_64/lib -lQt5PrintSupport -lQt5Widgets -lQt5Gui -lQt5Sql -lQt5Core -lGL -lpthread 
cmainwindow.o: In function `CMainWindow::CMainWindow(QWidget*)': 
/home/developeruser/projects/ueTestProject/bin/../cmainwindow.cpp:4: undefined reference to `vtable for CMainWindow' 
/home/developeruser/projects/ueTestProject/bin/../cmainwindow.cpp:4: undefined reference to `vtable for CMainWindow' 
cmainwindow.o: In function `CMainWindow::~CMainWindow()': 
/home/developeruser/projects/ueTestProject/bin/../cmainwindow.cpp:23: undefined reference to `vtable for CMainWindow' 
/home/developeruser/projects/ueTestProject/bin/../cmainwindow.cpp:23: undefined reference to `vtable for CMainWindow' 
uecentralwidget.o: In function `UeCentralWidget::UeCentralWidget(QWidget*)': 
/home/developeruser/projects/ueTestProject/bin/../gui/uecentralwidget.cpp:4: undefined reference to `vtable for UeCentralWidget' 
/home/developeruser/projects/ueTestProject/bin/../gui/uecentralwidget.cpp:4: undefined reference to `vtable for UeCentralWidget' 
uecentralwidget.o: In function `UeCentralWidget::~UeCentralWidget()': 
/home/developeruser/projects/ueTestProject/bin/../gui/uecentralwidget.cpp:22: undefined reference to `vtable for UeCentralWidget' 
/home/developeruser/projects/ueTestProject/bin/../gui/uecentralwidget.cpp:22: undefined reference to `vtable for UeCentralWidget' 
qcustomplot.o: In function `QCPLayer::QCPLayer(QCustomPlot*, QString const&)': 
/home/developeruser/projects/ueTestProject/bin/../plot/qcustomplot.cpp:755: undefined reference to `vtable for QCPLayer' 
qcustomplot.o: In function `QCPLayer::~QCPLayer()': 
/home/developeruser/projects/ueTestProject/bin/../plot/qcustomplot.cpp:761: undefined reference to `vtable for QCPLayer' 
qcustomplot.o: In function `QCPLayerable::QCPLayerable(QCustomPlot*, QString, QCPLayerable*)': 
/home/developeruser/projects/ueTestProject/bin/../plot/qcustomplot.cpp:937: undefined reference to `vtable for QCPLayerable' 
qcustomplot.o: In function `QCPLayerable::~QCPLayerable()': 
/home/developeruser/projects/ueTestProject/bin/../plot/qcustomplot.cpp:948: undefined reference to `vtable for QCPLayerable' 
qcustomplot.o: In function `QCPLayerable::moveToLayer(QCPLayer*, bool)': 
/home/developeruser/projects/ueTestProject/bin/../plot/qcustomplot.cpp:1147: undefined reference to `QCPLayerable::layerChanged(QCPLayer*)' 
qcustomplot.o: In function `QCPMarginGroup::QCPMarginGroup(QCustomPlot*)': 
/home/developeruser/projects/ueTestProject/bin/../plot/qcustomplot.cpp:1561: undefined reference to `vtable for QCPMarginGroup' 
qcustomplot.o: In function `QCPMarginGroup::~QCPMarginGroup()': 
/home/developeruser/projects/ueTestProject/bin/../plot/qcustomplot.cpp:1569: undefined reference to `vtable for QCPMarginGroup' 
qcustomplot.o: In function `QCPLayoutElement::QCPLayoutElement(QCustomPlot*)': 
/home/developeruser/projects/ueTestProject/bin/../plot/qcustomplot.cpp:1753: undefined reference to `vtable for QCPLayoutElement' 
qcustomplot.o: In function `QCPLayoutElement::~QCPLayoutElement()': 
/home/developeruser/projects/ueTestProject/bin/../plot/qcustomplot.cpp:1757: undefined reference to `vtable for QCPLayoutElement' 
qcustomplot.o: In function `QCPLayout::QCPLayout()': 
/home/developeruser/projects/ueTestProject/bin/../plot/qcustomplot.cpp:2139: undefined reference to `vtable for QCPLayout' 
qcustomplot.o: In function `QCPLayoutGrid::QCPLayoutGrid()': 
/home/developeruser/projects/ueTestProject/bin/../plot/qcustomplot.cpp:2501: undefined reference to `vtable for QCPLayoutGrid' 
qcustomplot.o: In function `QCPLayoutGrid::~QCPLayoutGrid()': 
/home/developeruser/projects/ueTestProject/bin/../plot/qcustomplot.cpp:2505: undefined reference to `vtable for QCPLayoutGrid' 
qcustomplot.o: In function `QCPLayoutInset::QCPLayoutInset()': 
/home/developeruser/projects/ueTestProject/bin/../plot/qcustomplot.cpp:3095: undefined reference to `vtable for QCPLayoutInset' 
qcustomplot.o: In function `QCPLayoutInset::~QCPLayoutInset()': 
/home/developeruser/projects/ueTestProject/bin/../plot/qcustomplot.cpp:3099: undefined reference to `vtable for QCPLayoutInset' 
qcustomplot.o: In function `QCPGrid::QCPGrid(QCPAxis*)': 
/home/developeruser/projects/ueTestProject/bin/../plot/qcustomplot.cpp:3691: undefined reference to `vtable for QCPGrid' 
qcustomplot.o: In function `QCPAxis::QCPAxis(QCPAxisRect*, QCPAxis::AxisType)': 
/home/developeruser/projects/ueTestProject/bin/../plot/qcustomplot.cpp:4050: undefined reference to `vtable for QCPAxis' 
qcustomplot.o: In function `QCPAxis::~QCPAxis()': 
/home/developeruser/projects/ueTestProject/bin/../plot/qcustomplot.cpp:4075: undefined reference to `vtable for QCPAxis' 
qcustomplot.o: In function `QCPAxis::setScaleType(QCPAxis::ScaleType)': 
/home/developeruser/projects/ueTestProject/bin/../plot/qcustomplot.cpp:4181: undefined reference to `QCPAxis::scaleTypeChanged(QCPAxis::ScaleType)' 
qcustomplot.o: In function `QCPAxis::setRange(QCPRange const&)': 
/home/developeruser/projects/ueTestProject/bin/../plot/qcustomplot.cpp:4226: undefined reference to `QCPAxis::rangeChanged(QCPRange const&)' 
/home/developeruser/projects/ueTestProject/bin/../plot/qcustomplot.cpp:4227: undefined reference to `QCPAxis::rangeChanged(QCPRange const&, QCPRange const&)' 
qcustomplot.o: In function `QCPAxis::setSelectableParts(QFlags<QCPAxis::SelectablePart> const&)': 
/home/developeruser/projects/ueTestProject/bin/../plot/qcustomplot.cpp:4245: undefined reference to `QCPAxis::selectableChanged(QFlags<QCPAxis::SelectablePart> const&)' 
qcustomplot.o: In function `QCPAxis::setSelectedParts(QFlags<QCPAxis::SelectablePart> const&)': 
/home/developeruser/projects/ueTestProject/bin/../plot/qcustomplot.cpp:4269: undefined reference to `QCPAxis::selectionChanged(QFlags<QCPAxis::SelectablePart> const&)' 
qcustomplot.o: In function `QCPAxis::setRange(double, double)': 
/home/developeruser/projects/ueTestProject/bin/../plot/qcustomplot.cpp:4299: undefined reference to `QCPAxis::rangeChanged(QCPRange const&)' 
/home/developeruser/projects/ueTestProject/bin/../plot/qcustomplot.cpp:4300: undefined reference to `QCPAxis::rangeChanged(QCPRange const&, QCPRange const&)' 
qcustomplot.o: In function `QCPAxis::setRangeLower(double)': 
/home/developeruser/projects/ueTestProject/bin/../plot/qcustomplot.cpp:4343: undefined reference to `QCPAxis::rangeChanged(QCPRange const&)' 
/home/developeruser/projects/ueTestProject/bin/../plot/qcustomplot.cpp:4344: undefined reference to `QCPAxis::rangeChanged(QCPRange const&, QCPRange const&)' 
qcustomplot.o: In function `QCPAxis::setRangeUpper(double)': 
/home/developeruser/projects/ueTestProject/bin/../plot/qcustomplot.cpp:4366: undefined reference to `QCPAxis::rangeChanged(QCPRange const&)' 
/home/developeruser/projects/ueTestProject/bin/../plot/qcustomplot.cpp:4367: undefined reference to `QCPAxis::rangeChanged(QCPRange const&, QCPRange const&)' 
qcustomplot.o: In function `QCPAxis::moveRange(double)': 
/home/developeruser/projects/ueTestProject/bin/../plot/qcustomplot.cpp:5168: undefined reference to `QCPAxis::rangeChanged(QCPRange const&)' 
/home/developeruser/projects/ueTestProject/bin/../plot/qcustomplot.cpp:5169: undefined reference to `QCPAxis::rangeChanged(QCPRange const&, QCPRange const&)' 
qcustomplot.o: In function `QCPAxis::scaleRange(double, double)': 
/home/developeruser/projects/ueTestProject/bin/../plot/qcustomplot.cpp:5201: undefined reference to `QCPAxis::rangeChanged(QCPRange const&)' 
/home/developeruser/projects/ueTestProject/bin/../plot/qcustomplot.cpp:5202: undefined reference to `QCPAxis::rangeChanged(QCPRange const&, QCPRange const&)' 
qcustomplot.o: In function `QCPAxis::setupTickVectors()': 
/home/developeruser/projects/ueTestProject/bin/../plot/qcustomplot.cpp:5530: undefined reference to `QCPAxis::ticksRequest()' 
/home/developeruser/projects/ueTestProject/bin/../plot/qcustomplot.cpp:5595: undefined reference to `QCPAxis::ticksRequest()' 
qcustomplot.o: In function `QCPAbstractPlottable::QCPAbstractPlottable(QCPAxis*, QCPAxis*)': 
/home/developeruser/projects/ueTestProject/bin/../plot/qcustomplot.cpp:6853: undefined reference to `vtable for QCPAbstractPlottable' 
qcustomplot.o: In function `QCPAbstractPlottable::setSelectable(bool)': 
/home/developeruser/projects/ueTestProject/bin/../plot/qcustomplot.cpp:7000: undefined reference to `QCPAbstractPlottable::selectableChanged(bool)' 
qcustomplot.o: In function `QCPAbstractPlottable::setSelected(bool)': 
/home/developeruser/projects/ueTestProject/bin/../plot/qcustomplot.cpp:7023: undefined reference to `QCPAbstractPlottable::selectionChanged(bool)' 
qcustomplot.o: In function `QCPAbstractItem::QCPAbstractItem(QCustomPlot*)': 
/home/developeruser/projects/ueTestProject/bin/../plot/qcustomplot.cpp:8359: undefined reference to `vtable for QCPAbstractItem' 
qcustomplot.o: In function `QCPAbstractItem::~QCPAbstractItem()': 
/home/developeruser/projects/ueTestProject/bin/../plot/qcustomplot.cpp:8369: undefined reference to `vtable for QCPAbstractItem' 
qcustomplot.o: In function `QCPAbstractItem::setSelectable(bool)': 
/home/developeruser/projects/ueTestProject/bin/../plot/qcustomplot.cpp:8421: undefined reference to `QCPAbstractItem::selectableChanged(bool)' 
qcustomplot.o: In function `QCPAbstractItem::setSelected(bool)': 
/home/developeruser/projects/ueTestProject/bin/../plot/qcustomplot.cpp:8444: undefined reference to `QCPAbstractItem::selectionChanged(bool)' 
qcustomplot.o: In function `QCustomPlot::QCustomPlot(QWidget*)': 
/home/developeruser/projects/ueTestProject/bin/../plot/qcustomplot.cpp:9056: undefined reference to `vtable for QCustomPlot' 
/home/developeruser/projects/ueTestProject/bin/../plot/qcustomplot.cpp:9056: undefined reference to `vtable for QCustomPlot' 
qcustomplot.o: In function `QCustomPlot::~QCustomPlot()': 
/home/developeruser/projects/ueTestProject/bin/../plot/qcustomplot.cpp:9106: undefined reference to `vtable for QCustomPlot' 
/home/developeruser/projects/ueTestProject/bin/../plot/qcustomplot.cpp:9106: undefined reference to `vtable for QCustomPlot' 
qcustomplot.o: In function `QCustomPlot::replot(QCustomPlot::RefreshPriority)': 
/home/developeruser/projects/ueTestProject/bin/../plot/qcustomplot.cpp:10384: undefined reference to `QCustomPlot::beforeReplot()' 
/home/developeruser/projects/ueTestProject/bin/../plot/qcustomplot.cpp:10403: undefined reference to `QCustomPlot::afterReplot()' 
qcustomplot.o: In function `QCustomPlot::mouseDoubleClickEvent(QMouseEvent*)': 
/home/developeruser/projects/ueTestProject/bin/../plot/qcustomplot.cpp:10700: undefined reference to `QCustomPlot::mouseDoubleClick(QMouseEvent*)' 
/home/developeruser/projects/ueTestProject/bin/../plot/qcustomplot.cpp:10707: undefined reference to `QCustomPlot::plottableDoubleClick(QCPAbstractPlottable*, QMouseEvent*)' 
/home/developeruser/projects/ueTestProject/bin/../plot/qcustomplot.cpp:10709: undefined reference to `QCustomPlot::axisDoubleClick(QCPAxis*, QCPAxis::SelectablePart, QMouseEvent*)' 
/home/developeruser/projects/ueTestProject/bin/../plot/qcustomplot.cpp:10711: undefined reference to `QCustomPlot::itemDoubleClick(QCPAbstractItem*, QMouseEvent*)' 
/home/developeruser/projects/ueTestProject/bin/../plot/qcustomplot.cpp:10713: undefined reference to `QCustomPlot::legendDoubleClick(QCPLegend*, QCPAbstractLegendItem*, QMouseEvent*)' 
/home/developeruser/projects/ueTestProject/bin/../plot/qcustomplot.cpp:10715: undefined reference to `QCustomPlot::legendDoubleClick(QCPLegend*, QCPAbstractLegendItem*, QMouseEvent*)' 
/home/developeruser/projects/ueTestProject/bin/../plot/qcustomplot.cpp:10717: undefined reference to `QCustomPlot::titleDoubleClick(QMouseEvent*, QCPPlotTitle*)' 
qcustomplot.o: In function `QCustomPlot::mousePressEvent(QMouseEvent*)': 
/home/developeruser/projects/ueTestProject/bin/../plot/qcustomplot.cpp:10742: undefined reference to `QCustomPlot::mousePress(QMouseEvent*)' 
qcustomplot.o: In function `QCustomPlot::mouseMoveEvent(QMouseEvent*)': 
/home/developeruser/projects/ueTestProject/bin/../plot/qcustomplot.cpp:10764: undefined reference to `QCustomPlot::mouseMove(QMouseEvent*)' 
qcustomplot.o: In function `QCustomPlot::mouseReleaseEvent(QMouseEvent*)': 
/home/developeruser/projects/ueTestProject/bin/../plot/qcustomplot.cpp:10789: undefined reference to `QCustomPlot::mouseRelease(QMouseEvent*)' 
/home/developeruser/projects/ueTestProject/bin/../plot/qcustomplot.cpp:10826: undefined reference to `QCustomPlot::selectionChangedByUser()' 
/home/developeruser/projects/ueTestProject/bin/../plot/qcustomplot.cpp:10833: undefined reference to `QCustomPlot::plottableClick(QCPAbstractPlottable*, QMouseEvent*)' 
/home/developeruser/projects/ueTestProject/bin/../plot/qcustomplot.cpp:10835: undefined reference to `QCustomPlot::axisClick(QCPAxis*, QCPAxis::SelectablePart, QMouseEvent*)' 
/home/developeruser/projects/ueTestProject/bin/../plot/qcustomplot.cpp:10837: undefined reference to `QCustomPlot::itemClick(QCPAbstractItem*, QMouseEvent*)' 
/home/developeruser/projects/ueTestProject/bin/../plot/qcustomplot.cpp:10839: undefined reference to `QCustomPlot::legendClick(QCPLegend*, QCPAbstractLegendItem*, QMouseEvent*)' 
/home/developeruser/projects/ueTestProject/bin/../plot/qcustomplot.cpp:10841: undefined reference to `QCustomPlot::legendClick(QCPLegend*, QCPAbstractLegendItem*, QMouseEvent*)' 
/home/developeruser/projects/ueTestProject/bin/../plot/qcustomplot.cpp:10843: undefined reference to `QCustomPlot::titleClick(QMouseEvent*, QCPPlotTitle*)' 
qcustomplot.o: In function `QCustomPlot::wheelEvent(QWheelEvent*)': 
/home/developeruser/projects/ueTestProject/bin/../plot/qcustomplot.cpp:10867: undefined reference to `QCustomPlot::mouseWheel(QWheelEvent*)' 
qcustomplot.o: In function `QCPAxisRect::QCPAxisRect(QCustomPlot*, bool)': 
/home/developeruser/projects/ueTestProject/bin/../plot/qcustomplot.cpp:11749: undefined reference to `vtable for QCPAxisRect' 
qcustomplot.o: In function `QCPAxisRect::~QCPAxisRect()': 
/home/developeruser/projects/ueTestProject/bin/../plot/qcustomplot.cpp:11783: undefined reference to `vtable for QCPAxisRect' 
qcustomplot.o: In function `QCPAbstractLegendItem::QCPAbstractLegendItem(QCPLegend*)': 
/home/developeruser/projects/ueTestProject/bin/../plot/qcustomplot.cpp:12668: undefined reference to `vtable for QCPAbstractLegendItem' 
qcustomplot.o: In function `QCPAbstractLegendItem::setSelectable(bool)': 
/home/developeruser/projects/ueTestProject/bin/../plot/qcustomplot.cpp:12726: undefined reference to `QCPAbstractLegendItem::selectableChanged(bool)' 
qcustomplot.o: In function `QCPAbstractLegendItem::setSelected(bool)': 
/home/developeruser/projects/ueTestProject/bin/../plot/qcustomplot.cpp:12743: undefined reference to `QCPAbstractLegendItem::selectionChanged(bool)' 
qcustomplot.o: In function `QCPPlottableLegendItem::QCPPlottableLegendItem(QCPLegend*, QCPAbstractPlottable*)': 
/home/developeruser/projects/ueTestProject/bin/../plot/qcustomplot.cpp:12838: undefined reference to `vtable for QCPPlottableLegendItem' 
qcustomplot.o: In function `QCPLegend::QCPLegend()': 
/home/developeruser/projects/ueTestProject/bin/../plot/qcustomplot.cpp:12966: undefined reference to `vtable for QCPLegend' 
qcustomplot.o: In function `QCPLegend::~QCPLegend()': 
/home/developeruser/projects/ueTestProject/bin/../plot/qcustomplot.cpp:12989: undefined reference to `vtable for QCPLegend' 
qcustomplot.o: In function `QCPLegend::setSelectableParts(QFlags<QCPLegend::SelectablePart> const&)': 
/home/developeruser/projects/ueTestProject/bin/../plot/qcustomplot.cpp:13122: undefined reference to `QCPLegend::selectableChanged(QFlags<QCPLegend::SelectablePart>)' 
qcustomplot.o: In function `QCPLegend::setSelectedParts(QFlags<QCPLegend::SelectablePart> const&)': 
/home/developeruser/projects/ueTestProject/bin/../plot/qcustomplot.cpp:13168: undefined reference to `QCPLegend::selectionChanged(QFlags<QCPLegend::SelectablePart>)' 
qcustomplot.o: In function `QCPPlotTitle::QCPPlotTitle(QCustomPlot*)': 
/home/developeruser/projects/ueTestProject/bin/../plot/qcustomplot.cpp:13536: undefined reference to `vtable for QCPPlotTitle' 
qcustomplot.o: In function `QCPPlotTitle::QCPPlotTitle(QCustomPlot*, QString const&)': 
/home/developeruser/projects/ueTestProject/bin/../plot/qcustomplot.cpp:13559: undefined reference to `vtable for QCPPlotTitle' 
qcustomplot.o: In function `QCPPlotTitle::setSelectable(bool)': 
/home/developeruser/projects/ueTestProject/bin/../plot/qcustomplot.cpp:13626: undefined reference to `QCPPlotTitle::selectableChanged(bool)' 
qcustomplot.o: In function `QCPPlotTitle::setSelected(bool)': 
/home/developeruser/projects/ueTestProject/bin/../plot/qcustomplot.cpp:13642: undefined reference to `QCPPlotTitle::selectionChanged(bool)' 
qcustomplot.o: In function `QCPColorScale::QCPColorScale(QCustomPlot*)': 
/home/developeruser/projects/ueTestProject/bin/../plot/qcustomplot.cpp:13841: undefined reference to `vtable for QCPColorScale' 
qcustomplot.o: In function `QCPColorScale::~QCPColorScale()': 
/home/developeruser/projects/ueTestProject/bin/../plot/qcustomplot.cpp:13848: undefined reference to `vtable for QCPColorScale' 
qcustomplot.o: In function `QCPColorScale::setDataRange(QCPRange const&)': 
/home/developeruser/projects/ueTestProject/bin/../plot/qcustomplot.cpp:13957: undefined reference to `QCPColorScale::dataRangeChanged(QCPRange)' 
qcustomplot.o: In function `QCPColorScale::setDataScaleType(QCPAxis::ScaleType)': 
/home/developeruser/projects/ueTestProject/bin/../plot/qcustomplot.cpp:13980: undefined reference to `QCPColorScale::dataScaleTypeChanged(QCPAxis::ScaleType)' 
qcustomplot.o: In function `QCPColorScale::setGradient(QCPColorGradient const&)': 
/home/developeruser/projects/ueTestProject/bin/../plot/qcustomplot.cpp:13998: undefined reference to `QCPColorScale::gradientChanged(QCPColorGradient)' 
qcustomplot.o: In function `QCPColorScaleAxisRectPrivate::QCPColorScaleAxisRectPrivate(QCPColorScale*)': 
/home/developeruser/projects/ueTestProject/bin/../plot/qcustomplot.cpp:14253: undefined reference to `vtable for QCPColorScaleAxisRectPrivate' 
qcustomplot.o: In function `QCPGraph::QCPGraph(QCPAxis*, QCPAxis*)': 
/home/developeruser/projects/ueTestProject/bin/../plot/qcustomplot.cpp:14502: undefined reference to `vtable for QCPGraph' 
qcustomplot.o: In function `QCPGraph::~QCPGraph()': 
/home/developeruser/projects/ueTestProject/bin/../plot/qcustomplot.cpp:14520: undefined reference to `vtable for QCPGraph' 
qcustomplot.o: In function `QCPCurve::QCPCurve(QCPAxis*, QCPAxis*)': 
/home/developeruser/projects/ueTestProject/bin/../plot/qcustomplot.cpp:16806: undefined reference to `vtable for QCPCurve' 
qcustomplot.o: In function `QCPCurve::~QCPCurve()': 
/home/developeruser/projects/ueTestProject/bin/../plot/qcustomplot.cpp:16822: undefined reference to `vtable for QCPCurve' 
qcustomplot.o: In function `QCPBarsGroup::QCPBarsGroup(QCustomPlot*)': 
/home/developeruser/projects/ueTestProject/bin/../plot/qcustomplot.cpp:18068: undefined reference to `vtable for QCPBarsGroup' 
qcustomplot.o: In function `QCPBarsGroup::~QCPBarsGroup()': 
/home/developeruser/projects/ueTestProject/bin/../plot/qcustomplot.cpp:18072: undefined reference to `vtable for QCPBarsGroup' 
qcustomplot.o: In function `QCPBars::QCPBars(QCPAxis*, QCPAxis*)': 
/home/developeruser/projects/ueTestProject/bin/../plot/qcustomplot.cpp:18444: undefined reference to `vtable for QCPBars' 
qcustomplot.o: In function `QCPBars::~QCPBars()': 
/home/developeruser/projects/ueTestProject/bin/../plot/qcustomplot.cpp:18457: undefined reference to `vtable for QCPBars' 
qcustomplot.o: In function `QCPStatisticalBox::QCPStatisticalBox(QCPAxis*, QCPAxis*)': 
/home/developeruser/projects/ueTestProject/bin/../plot/qcustomplot.cpp:19187: undefined reference to `vtable for QCPStatisticalBox' 
qcustomplot.o: In function `QCPColorMap::QCPColorMap(QCPAxis*, QCPAxis*)': 
/home/developeruser/projects/ueTestProject/bin/../plot/qcustomplot.cpp:20074: undefined reference to `vtable for QCPColorMap' 
qcustomplot.o: In function `QCPColorMap::~QCPColorMap()': 
/home/developeruser/projects/ueTestProject/bin/../plot/qcustomplot.cpp:20078: undefined reference to `vtable for QCPColorMap' 
qcustomplot.o: In function `QCPColorMap::setDataRange(QCPRange const&)': 
/home/developeruser/projects/ueTestProject/bin/../plot/qcustomplot.cpp:20126: undefined reference to `QCPColorMap::dataRangeChanged(QCPRange)' 
qcustomplot.o: In function `QCPColorMap::setDataScaleType(QCPAxis::ScaleType)': 
/home/developeruser/projects/ueTestProject/bin/../plot/qcustomplot.cpp:20141: undefined reference to `QCPColorMap::dataScaleTypeChanged(QCPAxis::ScaleType)' 
qcustomplot.o: In function `QCPColorMap::setGradient(QCPColorGradient const&)': 
/home/developeruser/projects/ueTestProject/bin/../plot/qcustomplot.cpp:20164: undefined reference to `QCPColorMap::gradientChanged(QCPColorGradient)' 
qcustomplot.o: In function `QCPFinancial::QCPFinancial(QCPAxis*, QCPAxis*)': 
/home/developeruser/projects/ueTestProject/bin/../plot/qcustomplot.cpp:20574: undefined reference to `vtable for QCPFinancial' 
qcustomplot.o: In function `QCPFinancial::~QCPFinancial()': 
/home/developeruser/projects/ueTestProject/bin/../plot/qcustomplot.cpp:20582: undefined reference to `vtable for QCPFinancial' 
qcustomplot.o: In function `QCPItemStraightLine::QCPItemStraightLine(QCustomPlot*)': 
/home/developeruser/projects/ueTestProject/bin/../plot/qcustomplot.cpp:21404: undefined reference to `vtable for QCPItemStraightLine' 
qcustomplot.o: In function `QCPItemStraightLine::~QCPItemStraightLine()': 
/home/developeruser/projects/ueTestProject/bin/../plot/qcustomplot.cpp:21413: undefined reference to `vtable for QCPItemStraightLine' 
qcustomplot.o: In function `QCPItemLine::QCPItemLine(QCustomPlot*)': 
/home/developeruser/projects/ueTestProject/bin/../plot/qcustomplot.cpp:21594: undefined reference to `vtable for QCPItemLine' 
qcustomplot.o: In function `QCPItemLine::~QCPItemLine()': 
/home/developeruser/projects/ueTestProject/bin/../plot/qcustomplot.cpp:21603: undefined reference to `vtable for QCPItemLine' 
qcustomplot.o: In function `QCPItemCurve::QCPItemCurve(QCustomPlot*)': 
/home/developeruser/projects/ueTestProject/bin/../plot/qcustomplot.cpp:21829: undefined reference to `vtable for QCPItemCurve' 
qcustomplot.o: In function `QCPItemCurve::~QCPItemCurve()': 
/home/developeruser/projects/ueTestProject/bin/../plot/qcustomplot.cpp:21840: undefined reference to `vtable for QCPItemCurve' 
qcustomplot.o: In function `QCPItemRect::QCPItemRect(QCustomPlot*)': 
/home/developeruser/projects/ueTestProject/bin/../plot/qcustomplot.cpp:21983: undefined reference to `vtable for QCPItemRect' 
qcustomplot.o: In function `QCPItemRect::~QCPItemRect()': 
/home/developeruser/projects/ueTestProject/bin/../plot/qcustomplot.cpp:21994: undefined reference to `vtable for QCPItemRect' 
qcustomplot.o: In function `QCPItemText::QCPItemText(QCustomPlot*)': 
/home/developeruser/projects/ueTestProject/bin/../plot/qcustomplot.cpp:22142: undefined reference to `vtable for QCPItemText' 
qcustomplot.o: In function `QCPItemText::~QCPItemText()': 
/home/developeruser/projects/ueTestProject/bin/../plot/qcustomplot.cpp:22159: undefined reference to `vtable for QCPItemText' 
qcustomplot.o: In function `QCPItemEllipse::QCPItemEllipse(QCustomPlot*)': 
/home/developeruser/projects/ueTestProject/bin/../plot/qcustomplot.cpp:22482: undefined reference to `vtable for QCPItemEllipse' 
qcustomplot.o: In function `QCPItemEllipse::~QCPItemEllipse()': 
/home/developeruser/projects/ueTestProject/bin/../plot/qcustomplot.cpp:22493: undefined reference to `vtable for QCPItemEllipse' 
qcustomplot.o: In function `QCPItemPixmap::QCPItemPixmap(QCustomPlot*)': 
/home/developeruser/projects/ueTestProject/bin/../plot/qcustomplot.cpp:22669: undefined reference to `vtable for QCPItemPixmap' 
qcustomplot.o: In function `QCPItemPixmap::~QCPItemPixmap()': 
/home/developeruser/projects/ueTestProject/bin/../plot/qcustomplot.cpp:22679: undefined reference to `vtable for QCPItemPixmap' 
qcustomplot.o: In function `QCPItemTracer::QCPItemTracer(QCustomPlot*)': 
/home/developeruser/projects/ueTestProject/bin/../plot/qcustomplot.cpp:22922: undefined reference to `vtable for QCPItemTracer' 
qcustomplot.o: In function `QCPItemTracer::~QCPItemTracer()': 
/home/developeruser/projects/ueTestProject/bin/../plot/qcustomplot.cpp:22936: undefined reference to `vtable for QCPItemTracer' 
qcustomplot.o: In function `QCPItemBracket::QCPItemBracket(QCustomPlot*)': 
/home/developeruser/projects/ueTestProject/bin/../plot/qcustomplot.cpp:23276: undefined reference to `vtable for QCPItemBracket' 
qcustomplot.o: In function `QCPItemBracket::~QCPItemBracket()': 
/home/developeruser/projects/ueTestProject/bin/../plot/qcustomplot.cpp:23287: undefined reference to `vtable for QCPItemBracket' 
qcustomplot.o: In function `QCPLayout::~QCPLayout()': 
/home/developeruser/projects/ueTestProject/bin/../plot/qcustomplot.h:719: undefined reference to `vtable for QCPLayout' 
qcustomplot.o: In function `QCPAbstractPlottable::~QCPAbstractPlottable()': 
/home/developeruser/projects/ueTestProject/bin/../plot/qcustomplot.h:1388: undefined reference to `vtable for QCPAbstractPlottable' 
qcustomplot.o: In function `QCPLayout* qobject_cast<QCPLayout*>(QObject*)': 
/opt/Qt/5.4/gcc_64/include/QtCore/qobject.h:520: undefined reference to `QCPLayout::staticMetaObject' 
qcustomplot.o: In function `QCPGraph* qobject_cast<QCPGraph*>(QObject*)': 

Это лишь некоторые из ошибок, потому что я не могу вставить их все из-за 30000 символов ограничения переполнения стека. Здесь также .pro файл:

#------------------------------------------------- 
# 
# Project created by QtCreator 2015-02-16T15:51:38 
# 
#------------------------------------------------- 

QT  += core gui 

greaterThan(QT_MAJOR_VERSION, 4): QT += widgets printsupport sql 

TARGET = ueTestProject 
TEMPLATE = app 

SOURCES += main.cpp\ 
    cmainwindow.cpp \ 
    layouts/ueborderlayout.cpp \ 
    gui/uecentralwidget.cpp \ 
    plot/qcustomplot.cpp \ 
    gui/uegraphwidget.cpp \ 
    gui/uetopmerchandisewidget.cpp \ 
    gui/uetopmerchandiseview.cpp \ 
    settings/uepossesttings.cpp \ 

Что распадаться?

Answer 1

Я удалил весь проект (после выполнения резервного копирования его), создал новый проект с таким же именем, добавлены заголовки и источники в той же иерархии, и теперь работает нормально ! В заголовке причины не было видно, что в файле .pro файл HEADERS раздел был каким-то образом удален.

Answer 2

Вы можете закрыть QtCreator, удалить файл .pro.user и Makefile и все остальные файлы, кроме исходных и заголовочных файлов. Затем откройте и настройте проект снова через QtCreator

Answer 3

Похоже, что эти ошибки вызваны тем, что компилятор не может найти код, который должен быть сгенерирован предкомпилятором Qt (MOC). Возможно, у вас все еще есть «мусор» из вашей предыдущей конфигурации .pro.

Рекомендуется почистить и перекомпилировать проект после изменения файла .pro. Вы можете узнать больше об этом на Using the Meta-Object Compiler (moc).

Вы можете попробовать это внутри QtCreator:

Build > Clean All 
Build > Run qmake 
Build > Build All 

Answer 4

Я решил это, добавив сам файл include в проект.

Так раздел заголовков должен также содержать qcustomplot.h

Очевидно со стандартным C/компиляторов C++ (MSVC++ GCC и т.д.), вам не нужно явно сделать компилятор знает о заголовке, до тех пор, как содержащая папку. Qt, очевидно, делает некоторую дополнительную магию.