Error on rosmake lsd_slam

[magiccjae]

[ rosmake ] Last 40 linesd_slam_viewer: 24.2 sec ] [ 1 Active 40/42 Complete ] {------------------------------------------------------------------------------- main_stitchVideos.cpp:(.text+0x9db1): undefined reference to cv::imread(cv::String const&, int)' main_stitchVideos.cpp:(.text+0x9dbe): undefined reference tocv::String::deallocate()' main_stitchVideos.cpp:(.text+0xa629): undefined reference to cv::String::allocate(unsigned long)' main_stitchVideos.cpp:(.text+0xa654): undefined reference tocv::imwrite(cv::String const&, cv::_InputArray const&, std::vector<int, std::allocator > const&)' main_stitchVideos.cpp:(.text+0xa661): undefined reference to cv::String::deallocate()' main_stitchVideos.cpp:(.text+0xa6c6): undefined reference tocv::String::allocate(unsigned long)' main_stitchVideos.cpp:(.text+0xa6e7): undefined reference to cv::imshow(cv::String const&, cv::_InputArray const&)' main_stitchVideos.cpp:(.text+0xa6f4): undefined reference tocv::String::deallocate()' main_stitchVideos.cpp:(.text+0xaec5): undefined reference to cv::String::allocate(unsigned long)' main_stitchVideos.cpp:(.text+0xaee8): undefined reference tocv::String::allocate(unsigned long)' main_stitchVideos.cpp:(.text+0xaf08): undefined reference to cv::String::allocate(unsigned long)' main_stitchVideos.cpp:(.text+0xaf28): undefined reference tocv::String::allocate(unsigned long)' main_stitchVideos.cpp:(.text+0xaf46): undefined reference to cv::String::allocate(unsigned long)' main_stitchVideos.cpp:(.text+0xb146): undefined reference tocv::String::deallocate()' main_stitchVideos.cpp:(.text+0xb1e2): undefined reference to cv::String::deallocate()' main_stitchVideos.cpp:(.text+0xb20e): undefined reference tocv::String::deallocate()' main_stitchVideos.cpp:(.text+0xb23f): undefined reference to cv::String::deallocate()' main_stitchVideos.cpp:(.text+0xb270): undefined reference tocv::String::deallocate()' CMakeFiles/videoStitch.dir/src/main_stitchVideos.cpp.o:main_stitchVideos.cpp:(.text+0xb33e): more undefined references to cv::String::deallocate()' follow collect2: error: ld returned 1 exit status make[3]: *** [../bin/videoStitch] Error 1 make[3]: Leaving directory/home/jae/rosbuild_ws/package_dir/lsd_slam/lsd_slam_viewer/build' make[2]: * [CMakeFiles/videoStitch.dir/all] Error 2 make[2]: * Waiting for unfinished jobs....

I am getting this error message and I am confused on what is going on. Should I resolve this error to do anything for LSD_slam? How can I get rid of this error? Please help me on this. [ rosmake ] Built 41 packages with 1 failures. Does this tell me that something is built or the entire thing hasn't been built because of the error?

[magiccjae]

Just in case anyone is wondering about this problem,,,

in the CMakeLists.txt file in your lsd_slam_core folder,

Add the following codes:

find_package(OpenCV REQUIRED)

Modify the following lines like pointed by arrow:

target_link_libraries(live_slam lsdslam ${catkin_LIBRARIES} ${G2O_LIBRARIES}) -------> target_link_libraries(live_slam lsdslam ${catkin_LIBRARIES} ${G2O_LIBRARIES} ${OpenCV_LIBS})

target_link_libraries(dataset lsdslam ${catkin_LIBRARIES} ${G2O_LIBRARIES}) --------> target_link_libraries(dataset lsdslam ${catkin_LIBRARIES} ${G2O_LIBRARIES} ${OpenCV_LIBS})

[cipri-tom]

Hi! Thank you for taking the time to write the solution you've found. Unfortunately, this is not working for me. I suspect I have OpenCV 3 installed, which moved/removed these functions. Do you know how I could check which OpenCV it is trying to link with ?

Edit: It seems it is looking for OpenCV2, when it needs OpenCV3. Having both confuses the make process. I solved it with the ugly hack in #163

[gabrielarpino]

THANKS IT WORKED :)