/usr/bin/ld: /tmp/ccccrXWn.o: undefined reference to symbol '_ZN2cv11VideoWriterC1Ev'
//usr/local/lib/libopencv_videoio.so.3.2: error adding symbols: DSO missing from command line
It also tells me that videoio.h not found when i build opencv even thou i have libv4l installed.
How can i make opencv VideoWriter work properly?
Solved.
Just need a flag -lopencv_videoio
Hello @zazazasaza, I have the same error with 'libopencv_highgui'. An error example is posted below. Quick question you mention a way to solve this is to add a flag, well I have a makefile that has flag related syntax.
It looks like this:
Flag Line set(CMAKE_CXX_FLAGS "-DCPU_ONLY -std=c++0x -lopencv_videoio -lopencv_highgui -lz ${CMAKE_CXX_FLAGS}")
Q:How do I add the flag? Or is it in another program? Please let me thank you.
Below is [ERROR]:
usr/bin/ld: CMakeFiles/drive_train.dir/src/drive_train.cpp.o: undefined reference to symbol ‘_ZN2cv11VideoWriterC1Ev’ //usr/lib/libopencv_highgui.so.2.4: error adding symbols: DSO missing from command line
What I'm working with if software information is needed: *- Cuda 8.0, Caffe, CUDNN 7.05, ROS Kinetic, OpenCV 2.4.13
Asked: 2017-07-27 06:33:09 -0600
Seen: 1,861 times
Last updated: Jul 27 '17
