make -j3 error

[linzhongchen]

(Mnn) wzlock@wzlock-Precision-7920-Tower:~/lin/pytorch/mnn_example/build$ make -j3 [ 4%] Building CXX object src/CMakeFiles/VisionEngine.dir/common/common.cpp.o [ 8%] Building CXX object src/CMakeFiles/VisionEngine.dir/classifier/classifier.cpp.o [ 12%] Building CXX object src/CMakeFiles/VisionEngine.dir/object/mobilenetssd/mobilenetssd.cpp.o In file included from /home/wzlock/lin/pytorch/mnn_example/src/common/common.cpp:1:0: /home/wzlock/lin/pytorch/mnn_example/src/common/common.h:7:28: fatal error: opencv2/core.hpp: 没有那个文件或目录 compilation terminated. src/CMakeFiles/VisionEngine.dir/build.make:62: recipe for target 'src/CMakeFiles/VisionEngine.dir/common/common.cpp.o' failed make[2]: [src/CMakeFiles/VisionEngine.dir/common/common.cpp.o] Error 1 make[2]: 正在等待未完成的任务.... In file included from /home/wzlock/lin/pytorch/mnn_example/src/object/mobilenetssd/mobilenetssd.cpp:1:0: /home/wzlock/lin/pytorch/mnn_example/src/object/mobilenetssd/mobilenetssd.h:12:28: fatal error: opencv2/core.hpp: 没有那个文件或目录 compilation terminated. src/CMakeFiles/VisionEngine.dir/build.make:110: recipe for target 'src/CMakeFiles/VisionEngine.dir/object/mobilenetssd/mobilenetssd.cpp.o' failed make[2]: [src/CMakeFiles/VisionEngine.dir/object/mobilenetssd/mobilenetssd.cpp.o] Error 1 In file included from /home/wzlock/lin/pytorch/mnn_example/src/classifier/classifier.cpp:1:0: /home/wzlock/lin/pytorch/mnn_example/src/classifier/classifier.h:13:28: fatal error: opencv2/core.hpp: 没有那个文件或目录 compilation terminated. src/CMakeFiles/VisionEngine.dir/build.make:86: recipe for target 'src/CMakeFiles/VisionEngine.dir/classifier/classifier.cpp.o' failed make[2]: [src/CMakeFiles/VisionEngine.dir/classifier/classifier.cpp.o] Error 1 CMakeFiles/Makefile2:91: recipe for target 'src/CMakeFiles/VisionEngine.dir/all' failed make[1]: [src/CMakeFiles/VisionEngine.dir/all] Error 2 Makefile:83: recipe for target 'all' failed make: [all] Error 2

[MirrorYu]

系统没有装OpenCV，自己源码安装一下OpenCV就好了