/usr/bin/ld: thor_simple.cpp:(.text+0xc61): undefined reference to `thor::iter::ImageSourceIter<cv::Mat>::next()'

[GeLink9999]

I have tried to make your examples thor_demo.cpp. But i have met a small issue.

I have copied the libthor.so from /usr/local/lib to the current example file. When make, it shows:
/usr/bin/ld: thor_simple.cpp:(.text+0xc61): undefined reference to `thor::iter::ImageSourceItercv::Mat::next()'

why does it cannot find ImageSourceIter? I am wondering if libthor.so includes ImageSourceIter.
inside cmakelists.txt, it shows:
add_executable(thor_simple thor_simple.cpp)
target_link_libraries(thor_simple libthor.so ${Protobuf_LIBRARIES} thor)

[lucasjinreal]

Hi，I renewed the project, now the example demo will be build with build_simple.sh. For usage, it should stay the same.