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WelinLee / ros_cv_qt_gui

The project provides how to use ROS and OpenCV to make a Qt GUI.
MIT License
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Error: undefined reference to `vtable for mydemo' #1

Open mishra39 opened 4 years ago

mishra39 commented 4 years ago

I cloned the repo and ran catkin build and received the following error: CMakeFiles/ros_cv_gui_demo_node.dir/src/mydemo.cpp.o: In function mydemo::mydemo(QWidget*)': mydemo.cpp:(.text+0x69): undefined reference tovtable for mydemo' mydemo.cpp:(.text+0x7e): undefined reference to vtable for mydemo' CMakeFiles/ros_cv_gui_demo_node.dir/src/mydemo.cpp.o: In functionmydemo::~mydemo()': mydemo.cpp:(.text+0x779): undefined reference to vtable for mydemo' mydemo.cpp:(.text+0x78b): undefined reference tovtable for mydemo' collect2: error: ld returned 1 exit status make[2]: [/home/NEA.com/akshit.mishra/catkin_ws/devel/.private/ros_cv_gui_demo/lib/ros_cv_gui_demo/ros_cv_gui_demo_node] Error 1 make[1]: [CMakeFiles/ros_cv_gui_demo_node.dir/all] Error 2 make: *** [all] Error 2

RH-Song commented 2 years ago

I got the same problem. Have you solved it?