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Qt + VTK on Mac OS X 10.6: errors linking projects

  • Hi!

    I'm UNSUCCESSFULLY trying to build the Qt + VTK examples included in VTK's 5.6.1 distribution (.../VTK/Examples/GUI/Qt/). Here's what I'm using:

    • VTK distribution: 5.6.1
    • Qt IDE: Qt creator 2.7.1 (based on Qt 4.7.0)
    • Mac OS X version: 10.6.6

    Also in the .pro project file on Qt I've included my vtk headers and lib directories:

    INCLUDEPATH += /Users/catamigue/Documents/Migue/Developer/bin/vtk561/include/vtk-5.6
    LIBS += -L/Users/catamigue/Documents/Migue/Developer/bin/vtk561Dyn/lib/vtk-5.6

    Regardless of the example I'm trying to build (Events, GraphicView, ImageViewer or SimpleView), after trying to build the project on Qt creator I always get the same error (in "Build issues" tab on Qt Creator):
    :: error: symbol(s) not found
    :: error: collect2: ld returned 1 exit status

    also from the "compile output" tab I get this after building:

    ld: warning: directory '/tmp/qt-stuff-6474/source/qt-everywhere-opensource-src-4.7.0/lib' following -L not found
    ld: warning: directory '/tmp/qt-stuff-6474/source/qt-everywhere-opensource-src-4.7.0/lib' following -F not found
    Undefined symbols:
    "vtkSmartPointerBase::~vtkSmartPointerBase()", referenced from:
    vtkSmartPointer<vtkRenderer>::~vtkSmartPointer()in simpleview.o
    vtkSmartPointer<vtkCubeSource>::~vtkSmartPointer()in simpleview.o
    vtkSmartPointer<vtkActor>::~vtkSmartPointer()in simpleview.o
    vtkSmartPointer<vtkPolyDataMapper>::~vtkSmartPointer()in simpleview.o
    vtkSmartPointer<vtkSphereSource>::~vtkSmartPointer()in simpleview.o
    "vtkAlgorithm::GetOutputPort(int)", referenced from:
    vtkAlgorithm::GetOutputPort() in simpleview.o
    "vtkActor::New()", referenced from:
    vtkSmartPointer<vtkActor>::New() in simpleview.o
    "vtkSphereSource::New()", referenced from:
    vtkSmartPointer<vtkSphereSource>::New() in simpleview.o
    "QVTKWidget::QVTKWidget(QWidget*, QFlagsQt::WindowType)", referenced from:
    Ui_SimpleView::setupUi(QMainWindow*) in simpleview.o
    Ui_SimpleView::setupUi(QMainWindow*) in simpleview.o
    "vtkRenderer::AddActor(vtkProp*)", referenced from:
    SimpleView::SimpleView()in simpleview.o
    SimpleView::SimpleView()in simpleview.o
    SimpleView::SimpleView()in simpleview.o
    SimpleView::SimpleView()in simpleview.o
    "vtkCubeSource::New()", referenced from:
    vtkSmartPointer<vtkCubeSource>::New() in simpleview.o
    "vtkPolyDataMapper::New()", referenced from:
    vtkSmartPointer<vtkPolyDataMapper>::New() in simpleview.o
    "vtkSmartPointerBase::vtkSmartPointerBase(vtkObjectBase*, vtkSmartPointerBase::NoReference const&)", referenced from:
    vtkSmartPointer<vtkSphereSource>::vtkSmartPointer(vtkSphereSource*, vtkSmartPointerBase::NoReference const&)in simpleview.o
    vtkSmartPointer<vtkCubeSource>::vtkSmartPointer(vtkCubeSource*, vtkSmartPointerBase::NoReference const&)in simpleview.o
    vtkSmartPointer<vtkPolyDataMapper>::vtkSmartPointer(vtkPolyDataMapper*, vtkSmartPointerBase::NoReference const&)in simpleview.o
    vtkSmartPointer<vtkActor>::vtkSmartPointer(vtkActor*, vtkSmartPointerBase::NoReference const&)in simpleview.o
    vtkSmartPointer<vtkRenderer>::vtkSmartPointer(vtkRenderer*, vtkSmartPointerBase::NoReference const&)in simpleview.o
    "vtkRenderer::New()", referenced from:
    vtkSmartPointer<vtkRenderer>::New() in simpleview.o
    ld: symbol(s) not found
    collect2: ld returned 1 exit status
    make: *** [] Error 1
    make: Leaving directory `/Users/catamigue/Documents/Migue/Polimi/Programming/Qt/Learning code/Qt + VTK + ITK/01SimpleView-build-desktop'
    The process "/usr/bin/make" exited with code %2.
    Error while building project 01SimpleView (target: Desktop)
    When executing build step 'Make'

    from what I've read in other forums this might be an error during linking... and I don't know what to do!... Please, some guidance will be really appreciated...

    Also some additional information of how vtk5.6.1 was built on my Mac:

    • CMake version: 2.8.1.
    • CMake parameters (using CMake interface, not command line):

    CMAKE_BUILD_TYPE = Release

    I've also tried by recompiling VTK with universal binaries (by changing CMAKE_OSX_ARCHITECTURE) and by building the projects in Qt Creator both in Debug and Release modes... And nothing!

    I've also successfully built all of the Qt examples (not including VTK)...

    Any comments?


    [EDIT: code formatting, Volker]

  • Something with the bundled version of Qt in the SDK/Creator are broken. I'd suggest you download the current version 4.7.1 for Mac from (see "this thread": for some further reading)

  • Hi!

    I've just downloaded and install the current (4.7.1.) version (after completely uninstalling the previous one), and with no success... I'm not getting these:

    ld: warning: directory '/tmp/qt-stuff-6474/source/qt-everywhere-opensource-src-4.7.0/lib' following -L not found
    ld: warning: directory '/tmp/qt-stuff-6474/source/qt-everywhere-opensource-src-4.7.0/lib' following -F not found

    warnings anymore. However I'm still unable of building my Qt+VTK project from Qtcreator (I'm now working with the release candidate 2.1). In the end I get the same errors:

    collect2: ld returned 1 exit status
    make: *** [] Error 1

    For now I've successfully managed to build the projects with CMake, but I'd still like to do everything from Qt creator, from coding to compiling and building the application.


  • You are still using the 4.7.0 version of Qt - the error lines clearly says it.

    You must make the new 4.7.1 version visible to Creator (Settings/Qt 4/Versions - add your newly compiled one) and switch to the new version in your project(s).

  • Hi Volker,

    As I mentioned in my previous post: I'm not getting those warnings (ld: warning: ...) anymore! Version 4.7.1 is already visible to Creator and I've already tried to compile the projects with this latest version.

    However the errors persist:
    collect2: ld returned 1 exit status
    make: *** [] Error 1

    Thanks again,

  • Ah, sorry. I overlooked the not.

    Can you switch to the compiler output tab of Creator. There it should mention what is missing, as it is a linker error and it most likely cannot resolve a symbol.

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