Skip to content
  • Categories
  • Recent
  • Tags
  • Popular
  • Users
  • Groups
  • Search
  • Get Qt Extensions
  • Unsolved
Collapse
Brand Logo
  1. Home
  2. Qt Development
  3. Installation and Deployment
  4. make error building qt 4.7.4 on ubuntu gutsy
Forum Updated to NodeBB v4.3 + New Features

make error building qt 4.7.4 on ubuntu gutsy

Scheduled Pinned Locked Moved Installation and Deployment
2 Posts 2 Posters 655 Views 2 Watching
  • Oldest to Newest
  • Newest to Oldest
  • Most Votes
Reply
  • Reply as topic
Log in to reply
This topic has been deleted. Only users with topic management privileges can see it.
  • S Offline
    S Offline
    Sonox
    wrote on last edited by
    #1

    The build process went on quite smoothly so far, but now I'm stuck.

    I get the following error executing make:

    make[3]: Entering directory /home/roman/zips/qt-everywhere-opensource-src-4.7.4/examples/multimedia/videographicsitem' g++ -Wl,-rpath-link,/home/roman/zips/qt-everywhere-opensource-src-4.7.4/lib -Wl,-O1 -Wl,-rpath,/usr/local/Trolltech/Qt-4.7.4/lib -Wl,-rpath,/usr/local/Trolltech/Qt-4.7.4/lib -o videographicsitem .obj/release-shared/main.o .obj/release-shared/videoplayer.o .obj/release-shared/videoitem.o .obj/release-shared/moc_videoplayer.o .obj/release-shared/moc_videoitem.o -L/home/roman/zips/qt-everywhere-opensource-src-4.7.4/lib -lQtMultimedia -L/home/roman/zips/qt-everywhere-opensource-src-4.7.4/lib -L/usr/X11R6/lib -lQtGui -lQtCore -lpthread .obj/release-shared/videoplayer.o: In function VideoPlayer::VideoPlayer(QWidget*, QFlagsQt::WindowType)':
    videoplayer.cpp:(.text+0x65a): undefined reference to VideoItem::VideoItem(QGraphicsItem*)' .obj/release-shared/videoplayer.o: In function VideoPlayer::VideoPlayer(QWidget*, QFlagsQt::WindowType)':
    videoplayer.cpp:(.text+0x126a): undefined reference to VideoItem::VideoItem(QGraphicsItem*)' .obj/release-shared/moc_videoitem.o:(.rodata._ZTV9VideoItem[vtable for VideoItem]+0x14): undefined reference to VideoItem::~VideoItem()'
    .obj/release-shared/moc_videoitem.o:(.rodata._ZTV9VideoItem[vtable for VideoItem]+0x18): undefined reference to VideoItem::~VideoItem()' .obj/release-shared/moc_videoitem.o:(.rodata._ZTV9VideoItem[vtable for VideoItem]+0x38): undefined reference to VideoItem::supportedPixelFormats(QAbstractVideoBuffer::HandleType) const'
    .obj/release-shared/moc_videoitem.o:(.rodata._ZTV9VideoItem[vtable for VideoItem]+0x44): undefined reference to VideoItem::start(QVideoSurfaceFormat const&)' .obj/release-shared/moc_videoitem.o:(.rodata._ZTV9VideoItem[vtable for VideoItem]+0x48): undefined reference to VideoItem::stop()'
    .obj/release-shared/moc_videoitem.o:(.rodata._ZTV9VideoItem[vtable for VideoItem]+0x4c): undefined reference to VideoItem::present(QVideoFrame const&)' .obj/release-shared/moc_videoitem.o:(.rodata._ZTV9VideoItem[vtable for VideoItem]+0x50): undefined reference to VideoItem::boundingRect() const'
    .obj/release-shared/moc_videoitem.o:(.rodata._ZTV9VideoItem[vtable for VideoItem]+0x54): undefined reference to VideoItem::paint(QPainter*, QStyleOptionGraphicsItem const*, QWidget*)' .obj/release-shared/moc_videoitem.o:(.rodata._ZTV9VideoItem[vtable for VideoItem]+0x60): undefined reference to non-virtual thunk to VideoItem::~VideoItem()'
    .obj/release-shared/moc_videoitem.o:(.rodata._ZTV9VideoItem[vtable for VideoItem]+0x64): undefined reference to non-virtual thunk to VideoItem::~VideoItem()' .obj/release-shared/moc_videoitem.o:(.rodata._ZTV9VideoItem[vtable for VideoItem]+0x6c): undefined reference to non-virtual thunk to VideoItem::boundingRect() const'
    .obj/release-shared/moc_videoitem.o:(.rodata._ZTV9VideoItem[vtable for VideoItem]+0x88): undefined reference to non-virtual thunk to VideoItem::paint(QPainter*, QStyleOptionGraphicsItem const*, QWidget*)' collect2: ld returned 1 exit status make[3]: *** [videographicsitem] Error 1 make[3]: Leaving directory /home/roman/zips/qt-everywhere-opensource-src-4.7.4/examples/multimedia/videographicsitem'
    make[2]: *** [sub-videographicsitem-make_default] Error 2
    make[2]: Leaving directory /home/roman/zips/qt-everywhere-opensource-src-4.7.4/examples/multimedia' make[1]: *** [sub-multimedia-make_default] Error 2 make[1]: Leaving directory /home/roman/zips/qt-everywhere-opensource-src-4.7.4/examples'
    make: *** [sub-examples-make_default-ordered] Error 2
    roman@roman-desktop:~/zips/qt-everywhere-opensource-src-4.7.4$

    Any ideas what is causing this?

    1 Reply Last reply
    0
    • SGaistS Offline
      SGaistS Offline
      SGaist
      Lifetime Qt Champion
      wrote on last edited by
      #2

      Hi and welcome to devnet,

      Is your problem finalizing your Qt build or just build this example. If the former, just disable building the examples and tests when building Qt.

      Out of curiosity, why use such an old version of Qt ?

      Interested in AI ? www.idiap.ch
      Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

      1 Reply Last reply
      0

      • Login

      • Login or register to search.
      • First post
        Last post
      0
      • Categories
      • Recent
      • Tags
      • Popular
      • Users
      • Groups
      • Search
      • Get Qt Extensions
      • Unsolved