[err]multiple definition of `***'

err

CMakeFiles/dsm.dir/src/main_stateEstimation.cpp.o: In function `align_mean(cv::Mat, cv::Rect_<int>, float, float, float, float)':
main_stateEstimation.cpp:(.text+0x4a8): multiple definition of `align_mean(cv::Mat, cv::Rect_<int>, float, float, float, float)'
CMakeFiles/dsm.dir/src/stateEstimation.cpp.o:stateEstimation.cpp:(.text+0x340): first defined here
CMakeFiles/dsm.dir/src/main_stateEstimation.cpp.o: In function `align_mean(cv::Mat, cv::Mat)':
main_stateEstimation.cpp:(.text+0x8b0): multiple definition of `align_mean(cv::Mat, cv::Mat)'
CMakeFiles/dsm.dir/src/stateEstimation.cpp.o:stateEstimation.cpp:(.text+0x1710): first defined here
CMakeFiles/dsm.dir/src/main_stateEstimation.cpp.o: In function `perturb(cv::Rect_<int>)':
main_stateEstimation.cpp:(.text+0xf40): multiple definition of `perturb(cv::Rect_<int>)'
CMakeFiles/dsm.dir/src/stateEstimation.cpp.o:stateEstimation.cpp:(.text+0x2e50): first defined here
CMakeFiles/dsm.dir/src/main_stateEstimation.cpp.o: In function `trim(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)':
main_stateEstimation.cpp:(.text+0x1068): multiple definition of `trim(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)'
CMakeFiles/dsm.dir/src/stateEstimation.cpp.o:stateEstimation.cpp:(.text+0x2f78): first defined here
CMakeFiles/dsm.dir/src/main_stateEstimation.cpp.o: In function `replace(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)':
main_stateEstimation.cpp:(.text+0x11a8): multiple definition of `replace(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)'
CMakeFiles/dsm.dir/src/stateEstimation.cpp.o:stateEstimation.cpp:(.text+0x30b8): first defined here
CMakeFiles/dsm.dir/src/main_stateEstimation.cpp.o: In function `save_ImageLabels(std::vector<ImageLabel, std::allocator<ImageLabel> >, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >)':
main_stateEstimation.cpp:(.text+0xc3a0): multiple definition of `save_ImageLabels(std::vector<ImageLabel, std::allocator<ImageLabel> >, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >)'
CMakeFiles/dsm.dir/src/stateEstimation.cpp.o:stateEstimation.cpp:(.text+0x7070): first defined here
CMakeFiles/dsm.dir/src/main_stateEstimation.cpp.o: In function `split(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)':
main_stateEstimation.cpp:(.text+0xd0e0): multiple definition of `split(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)'
CMakeFiles/dsm.dir/src/stateEstimation.cpp.o:stateEstimation.cpp:(.text+0x7ca8): first defined here
CMakeFiles/dsm.dir/src/main_stateEstimation.cpp.o: In function `ReadLabelsFromFile(std::vector<ImageLabel, std::allocator<ImageLabel> >&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >)':
main_stateEstimation.cpp:(.text+0xd3c0): multiple definition of `ReadLabelsFromFile(std::vector<ImageLabel, std::allocator<ImageLabel> >&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >)'
CMakeFiles/dsm.dir/src/stateEstimation.cpp.o:stateEstimation.cpp:(.text+0x8030): first defined here
CMakeFiles/dsm.dir/src/main_stateEstimation.cpp.o:(.data+0x8f0): multiple definition of `trainFilePath'
CMakeFiles/dsm.dir/src/stateEstimation.cpp.o:(.data+0x608): first defined here
CMakeFiles/dsm.dir/src/main_stateEstimation.cpp.o: In function `load_ImageLabels(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::vector<ImageLabel, std::allocator<ImageLabel> >&)':
main_stateEstimation.cpp:(.text+0xe9e8): multiple definition of `load_ImageLabels(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::vector<ImageLabel, std::allocator<ImageLabel> >&)'
CMakeFiles/dsm.dir/src/stateEstimation.cpp.o:stateEstimation.cpp:(.text+0x91a0): first defined here
CMakeFiles/dsm.dir/src/main_stateEstimation.cpp.o:(.data+0x308): multiple definition of `estimateHeadPoseMat'
CMakeFiles/dsm.dir/src/stateEstimation.cpp.o:(.data+0x20): first defined here
CMakeFiles/dsm.dir/src/main_stateEstimation.cpp.o:(.data+0x528): multiple definition of `extern_point_indexs'
CMakeFiles/dsm.dir/src/stateEstimation.cpp.o:(.data+0x240): first defined here
CMakeFiles/dsm.dir/src/main_stateEstimation.cpp.o:(.data+0x560): multiple definition of `extern_point_Length'
CMakeFiles/dsm.dir/src/stateEstimation.cpp.o:(.data+0x278): first defined here
CMakeFiles/dsm.dir/src/main_stateEstimation.cpp.o:(.data+0x568): multiple definition of `eyes_indexs'
CMakeFiles/dsm.dir/src/stateEstimation.cpp.o:(.data+0x280): first defined here
CMakeFiles/dsm.dir/src/main_stateEstimation.cpp.o:(.data+0x578): multiple definition of `IteraLandmarkIndex5'
CMakeFiles/dsm.dir/src/stateEstimation.cpp.o:(.data+0x290): first defined here
CMakeFiles/dsm.dir/src/main_stateEstimation.cpp.o:(.data+0x5c8): multiple definition of `LandmarkLength5'
CMakeFiles/dsm.dir/src/stateEstimation.cpp.o:(.data+0x2e0): first defined here
CMakeFiles/dsm.dir/src/main_stateEstimation.cpp.o:(.data+0x5d0): multiple definition of `IteraLandmarkIndex4'
CMakeFiles/dsm.dir/src/stateEstimation.cpp.o:(.data+0x2e8): first defined here
CMakeFiles/dsm.dir/src/main_stateEstimation.cpp.o:(.data+0x620): multiple definition of `LandmarkLength4'
CMakeFiles/dsm.dir/src/stateEstimation.cpp.o:(.data+0x338): first defined here
CMakeFiles/dsm.dir/src/main_stateEstimation.cpp.o:(.data+0x628): multiple definition of `IteraLandmarkIndex3'
CMakeFiles/dsm.dir/src/stateEstimation.cpp.o:(.data+0x340): first defined here
CMakeFiles/dsm.dir/src/main_stateEstimation.cpp.o:(.data+0x658): multiple definition of `LandmarkLength3'
CMakeFiles/dsm.dir/src/stateEstimation.cpp.o:(.data+0x370): first defined here
CMakeFiles/dsm.dir/src/main_stateEstimation.cpp.o:(.data+0x660): multiple definition of `IteraLandmarkIndex2'
CMakeFiles/dsm.dir/src/stateEstimation.cpp.o:(.data+0x378): first defined here
CMakeFiles/dsm.dir/src/main_stateEstimation.cpp.o:(.data+0x690): multiple definition of `LandmarkLength2'
CMakeFiles/dsm.dir/src/stateEstimation.cpp.o:(.data+0x3a8): first defined here
CMakeFiles/dsm.dir/src/main_stateEstimation.cpp.o:(.data+0x698): multiple definition of `IteraLandmarkIndex1'
CMakeFiles/dsm.dir/src/stateEstimation.cpp.o:(.data+0x3b0): first defined here
CMakeFiles/dsm.dir/src/main_stateEstimation.cpp.o:(.data+0x6c8): multiple definition of `LandmarkLength1'
CMakeFiles/dsm.dir/src/stateEstimation.cpp.o:(.data+0x3e0): first defined here
CMakeFiles/dsm.dir/src/main_stateEstimation.cpp.o:(.data+0x6d0): multiple definition of `mean_norm_shape'
CMakeFiles/dsm.dir/src/stateEstimation.cpp.o:(.data+0x3e8): first defined here
collect2: error: ld returned  exit status
CMakeFiles/dsm.dir/build.make:: recipe for target '../lib/libdsm.so' failed
make[]: *** [../lib/libdsm.so] Error
CMakeFiles/Makefile2:: recipe for target 'CMakeFiles/dsm.dir/all' failed
make[]: *** [CMakeFiles/dsm.dir/all] Error
Makefile:: recipe for target 'all' failed
make: *** [all] Error 

ref:

1. multiple definition of `xxxx`问题解决及其原理;

2. 解决multiple definition of的方法;

end