Unable to compile

[codeAC29]

After running make I get the following error:

CXX src/main.cpp
CXX/LD seg_label_generate
/usr/bin/ld: build/src/seg_label_generator.o: undefined reference to symbol '_ZN2cv7imwriteERKNS_6StringERKNS_11_InputArrayERKSt6vectorIiSaIiEE'
//usr/local/lib/libopencv_imgcodecs.so.3.3: error adding symbols: DSO missing from command line
collect2: error: ld returned 1 exit status
Makefile:39: recipe for target 'seg_label_generate' failed
make: *** [seg_label_generate] Error 1

Thanks

[yangtx2009]

I met the same problem. For me, the compilation works when I add two lines
OPENCV =`pkg-config opencv --cflags --libs`
LIBS = $(OPENCV)
before BUILD_DIR
and add @$(CXX) -o $@ $^ $(LDFLAGS) $(LIBS) in $(PROJECT_NAME): ...

[panlanlan]

@yangtx2009 OPENCV =pkg-config opencv --cflags --libs
LIBS = $(OPENCV)
@$(CXX) -o $@ $^ $(LDFLAGS) $(LIBS) in $(PROJECT_NAME): ...
which files and lines in the files i should modify it
can you tell me it ?

[nikhilbv]

@yangtx2009 Even I'm facing the same problem. Can you please clarify the solution?

[mengzhibin]

@nikhilbv He is meaning the Makefile file.

[XieZixiUSTC]

/usr/bin/ld: build/src/evaluate.o: undefined reference to symbol '_ZN2cv6imreadERKNS_6StringEi'
i meet this problem too

[zchrissirhcz]

@XieZixiUSTC Consider adding opencv_imgcodecs in makefile. This OpenCV component includes the definition of imread for OpenCV3/4