未定義參考OpenSceneGraph的

我試圖從這裏https://github.com/uji-ros-pkg/visualization_osg編譯ROS OSG項目，並不斷收到以下錯誤：未定義參考OpenSceneGraph的

CMakeFiles/osg_interactive_markers_demo.dir/examples/osg_interactive_markers_demo.cpp.o: In function `main': 
/home/user/catkin_ws/src/visualization_osg/osg_interactive_markers/examples/osg_interactive_markers_demo.cpp:28: undefined reference to `osgViewer::View::addEventHandler(osgGA::EventHandler*)' 
/home/user/catkin_ws/src/visualization_osg/osg_interactive_markers/examples/osg_interactive_markers_demo.cpp:29: undefined reference to `osgViewer::View::addEventHandler(osgGA::EventHandler*)' 
/home/user/catkin_ws/devel/lib/libosg_utils.so: undefined reference to `osg::NodeVisitor::NodeVisitor(osg::NodeVisitor const&, osg::CopyOp const&)' 
/home/user/catkin_ws/devel/lib/libosg_interactive_markers.so: undefined reference to `osg::Group::removeChild(osg::Node*)' 
/home/user/catkin_ws/devel/lib/libosg_utils.so: undefined reference to `osg::NodeVisitor::apply(osg::Geometry&)' 
/home/user/catkin_ws/devel/lib/libosg_interactive_markers.so: undefined reference to `osg::Group::getNumChildren() const' 
/home/user/catkin_ws/devel/lib/libosg_utils.so: undefined reference to `osg::NodeVisitor::apply(osg::Drawable&)'

根據我的理解應該有一個鏈接的問題，但我不能找到一種方法要解決這個問題。我的CMake文件看起來如下：

cmake_minimum_required(VERSION 2.8.3) 
project(osg_interactive_markers) 

find_package(catkin REQUIRED COMPONENTS roscpp tf interactive_markers) 

find_package(osg_utils REQUIRED) 
find_package(osg_markers REQUIRED) 
find_package(OpenSceneGraph REQUIRED COMPONENTS osgSim osgUtil osgDB osgFX osgGA osgTerrain osgViewer osgText osgWidget osgManipulator osg) 

catkin_package(
INCLUDE_DIRS include 
LIBRARIES ${PROJECT_NAME} 
CATKIN_DEPENDS 
    roscpp 
    tf 
    interactive_markers 
DEPENDS 
    osg_markers 
    osg_utils 
    libopenscenegraph 
) 

include_directories(include ${catkin_INCLUDE_DIRS} ${osg_utils_INCLUDE_DIRS} ${osg_markers_INCLUDE_DIRS} ${OpenSceneGraph_INCLUDE_DIRS}) 
add_library(${PROJECT_NAME} 
    src/interactive_marker_client.cpp 
    src/interactive_marker_display.cpp 
    src/interactive_marker.cpp 
    src/interactive_marker_control.cpp 
    src/draggers.cpp 
) 

target_link_libraries(${PROJECT_NAME} ${catkin_LIBRARIES} ${OPENSCENEGRAPH_LIBRARIES} ${OSGUTILS_LIBRARIES} ${OSGMARKERS_LIBRARIES} -lGLU) 

add_executable(osg_interactive_markers_demo examples/osg_interactive_markers_demo.cpp) 
target_link_libraries(osg_interactive_markers_demo ${PROJECT_NAME} ${catkin_LIBRARIES} ${OPENSCENEGRAPH_LIBRARIES} ${OSGUTILS_LIBRARIES} ${OSGMARKERS_LIBRARIES} -lGLU) 

add_dependencies(${PROJECT_NAME} ${catkin_EXPORTED_TARGETS}) 

configure_file(osgInteractiveMarkersConfig.cmake.in ${CMAKE_CURRENT_BINARY_DIR}/lib/${CMAKE_PROJECT_NAME}Config.cmake @ONLY) 

install(FILES ${CMAKE_CURRENT_BINARY_DIR}/lib/${CMAKE_PROJECT_NAME}Config.cmake 
     DESTINATION share/${CMAKE_PROJECT_NAME}) 

install(
TARGETS 
osg_interactive_markers_demo 
${PROJECT_NAME} 
ARCHIVE DESTINATION ${CATKIN_PACKAGE_LIB_DESTINATION} 
LIBRARY DESTINATION ${CATKIN_PACKAGE_LIB_DESTINATION} 
RUNTIME DESTINATION ${CATKIN_PACKAGE_BIN_DESTINATION} 
) 
install(DIRECTORY include/${PROJECT_NAME} 
DESTINATION ${CATKIN_PACKAGE_INCLUDE_DESTINATION})

任何想法可以在這裏做什麼？我是OSG的新手，我非常感謝你的幫助。

來源

2016-04-17 Etimr

您沒有針對正確的OSG鏈接庫。

我無法對你提到的具體項目GitHub的評論，但總的來說，如果你正在使用的自帶的OSG分佈FindOSG.cmake模塊，你應該

FIND_PACKAGE(OSG REQUIRED)

，然後鏈接調用它像

OSG_LIBRARY 
OSGUTIL_LIBRARY 
OSGGA_LIBRARY 
etc...

沒有定義「全局」 OPENSCENEGRAPH_LIBRARIES符號的具體OSG庫，看到FindOSG.cmake

來源

2016-04-17 15:02:04 rickyviking

感謝您的回覆@ rickyviking！我使用FindOpenSceneGraph.cmake [鏈接]（https://cmake.org/cmake/help/v3.0/module/FindOpenSceneGraph.html），根據它可以使用OPENSCENEGRAPH_LIBRARIES – Etimr

習題lem解決了，原因是錯誤的（雙）安裝OSG

來源

2016-04-20 13:40:57 Etimr

未定義參考OpenSceneGraph的

回答

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