undefined reference to `vtable for MyViz'
In the librviz_tutorial, myviz.h resides in librviz_tutorial/src. I'd like to move it to librviz_tutorial/include/librviz_tutorial. In CMakeLists.txt, I changed include_directories(${catkin_INCLUDE_DIRS}) to include_directories(include ${catkin_INCLUDE_DIRS}), and catkin_package() to catkin_package(INCLUDE_DIRS include). I also changed #include "myviz.h" to #include "librviz_tutorial/myviz.h" in both myviz.cpp and main.cpp However, I get the following error when building:
CMakeFiles/myviz.dir/src/myviz.cpp.o: In function `MyViz::MyViz(QWidget*)':
myviz.cpp:(.text+0x5d): undefined reference to `vtable for MyViz'
myviz.cpp:(.text+0x72): undefined reference to `vtable for MyViz'
CMakeFiles/myviz.dir/src/myviz.cpp.o: In function `MyViz::~MyViz()':
myviz.cpp:(.text+0x98e): undefined reference to `vtable for MyViz'
myviz.cpp:(.text+0x9a0): undefined reference to `vtable for MyViz'
collect2: error: ld returned 1 exit status
make[2]: *** [/home/user/workspace/devel/.private/librviz_tutorial/lib/librviz_tutorial/myviz] Error 1
make[1]: *** [CMakeFiles/myviz.dir/all] Error 2
make: *** [all] Error 2
I assume this has something to do with inheritance and virtual member functions. Is there anything I can add to CMakeLists.txt to fix this? Or myviz? Thanks.
It seems like the Qt MOC step may not be executing correctly, but without seeing your full CMakeLists.txt it's impossible to tell.
As I said in the post, I've only changed two things in the tutorial's CMakeLists.txt:
I changed
include_directories(${catkin_INCLUDE_DIRS})toinclude_directories(include ${catkin_INCLUDE_DIRS}), andcatkin_package()tocatkin_package(INCLUDE_DIRS include)You probably need to update https://github.com/ros-visualization/... for the new path to myviz.h .
Whoops, wrong branch. I'm using kinetic-devel. myviz.h isn't listed in CMakeLists.txt anymore.
Looks like you're running into this: https://stackoverflow.com/questions/2...