Error when installing yolo34py-gpu from source.

[justin-kel]

python 3.6.9
ubuntu 18.04
opencv version 4.5.2

nvcc --version returns:
nvcc: NVIDIA (R) Cuda compiler driver
Copyright (c) 2005-2019 NVIDIA Corporation
Built on Wed_Oct_23_21:14:42_PDT_2019
Cuda compilation tools, release 10.2, V10.2.89

When running pip install . in /src,with OPENCV=1 and GPU=1:

Defaulting to user installation because normal site-packages is not writeable
Processing /home/justin/YOLO3-4-Py/src
  DEPRECATION: A future pip version will change local packages to be built in-place without first copying to a temporary directory. We recommend you use --use-feature=in-tree-build to test your packages with this new behavior before it becomes the default.
   pip 21.3 will remove support for this functionality. You can find discussion regarding this at https://github.com/pypa/pip/issues/7555.
Requirement already satisfied: cython>=0.27 in /home/justin/.local/lib/python3.6/site-packages (from yolo34py-gpu==0.2) (0.29.23)
Requirement already satisfied: requests in /usr/lib/python3/dist-packages (from yolo34py-gpu==0.2) (2.18.4)
Requirement already satisfied: numpy in /home/justin/.local/lib/python3.6/site-packages (from yolo34py-gpu==0.2) (1.19.5)
Building wheels for collected packages: yolo34py-gpu
  Building wheel for yolo34py-gpu (setup.py) ... error
  ERROR: Command errored out with exit status 1:
   command: /usr/bin/python3 -u -c 'import io, os, sys, setuptools, tokenize; sys.argv[0] = '"'"'/tmp/pip-req-build-8r9ev6tn/setup.py'"'"'; __file__='"'"'/tmp/pip-req-build-8r9ev6tn/setup.py'"'"';f = getattr(tokenize, '"'"'open'"'"', open)(__file__) if os.path.exists(__file__) else io.StringIO('"'"'from setuptools import setup; setup()'"'"');code = f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' bdist_wheel -d /tmp/pip-wheel-mze17mui
       cwd: /tmp/pip-req-build-8r9ev6tn/
  Complete output (26 lines):
  INFO:root:Compiling wrapper with gpu
  INFO:root:Compiling wrapper with OpenCV
  INFO:root:Darknet will be downloaded from 'https://github.com/madhawav/darknet/archive/yolo34py-intergration-v2.zip'
  running bdist_wheel
  running build
  /usr/lib/python3/dist-packages/requests/__init__.py:80: RequestsDependencyWarning: urllib3 (1.26.6) or chardet (3.0.4) doesn't match a supported version!
    RequestsDependencyWarning)
  INFO:root:Temp Path: /tmp/darknet
  INFO:root:Downloading darknet
  INFO:root:Extracting darknet
  INFO:root:Building darknet
  INFO:root:b'gcc -Iinclude/ -Isrc/ -DOPENCV `pkg-config --cflags opencv`  -DGPU -I/usr/local/cuda/include/ -Wall -Wno-unused-result -Wno-unknown-pragmas -Wfatal-errors -fPIC -Ofast -DOPENCV -DGPU -c ./src/gemm.c -o obj/gemm.o'
  In file included from /usr/include/opencv/opencv2/core/types_c.h:82:0,
                   from /usr/include/opencv/opencv2/core/core_c.h:48,
                   from /usr/include/opencv/opencv2/highgui/highgui_c.h:45,
                   from include/darknet.h:25,
                   from ./src/utils.h:5,
                   from ./src/gemm.c:2:
  /usr/include/opencv/opencv2/core/cvdef.h:690:4: error: #error "OpenCV 4.x+ requires enabled C++11 support"
   #  error "OpenCV 4.x+ requires enabled C++11 support"
      ^~~~~
  compilation terminated due to -Wfatal-errors.
  make: *** [obj/gemm.o] Error 1
  INFO:root:b"Makefile:85: recipe for target 'obj/gemm.o' failed"
  INFO:root:Moving to /tmp/pip-req-build-8r9ev6tn/__libdarknet/libdarknet.so
  error: [Errno 2] No such file or directory: '/tmp/darknet/darknet-yolo34py-intergration-v2/libdarknet.so'
  ----------------------------------------
  ERROR: Failed building wheel for yolo34py-gpu
  Running setup.py clean for yolo34py-gpu
Failed to build yolo34py-gpu
Installing collected packages: yolo34py-gpu
  Attempting uninstall: yolo34py-gpu
    Found existing installation: yolo34py-gpu 0.2
    Uninstalling yolo34py-gpu-0.2:
      Successfully uninstalled yolo34py-gpu-0.2
    Running setup.py install for yolo34py-gpu ... error
    ERROR: Command errored out with exit status 1:
     command: /usr/bin/python3 -u -c 'import io, os, sys, setuptools, tokenize; sys.argv[0] = '"'"'/tmp/pip-req-build-8r9ev6tn/setup.py'"'"'; __file__='"'"'/tmp/pip-req-build-8r9ev6tn/setup.py'"'"';f = getattr(tokenize, '"'"'open'"'"', open)(__file__) if os.path.exists(__file__) else io.StringIO('"'"'from setuptools import setup; setup()'"'"');code = f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' install --record /tmp/pip-record-l6dttaf9/install-record.txt --single-version-externally-managed --user --prefix= --compile --install-headers /home/justin/.local/include/python3.6m/yolo34py-gpu
         cwd: /tmp/pip-req-build-8r9ev6tn/
    Complete output (26 lines):
    INFO:root:Compiling wrapper with gpu
    INFO:root:Compiling wrapper with OpenCV
    INFO:root:Darknet will be downloaded from 'https://github.com/madhawav/darknet/archive/yolo34py-intergration-v2.zip'
    running install
    running build
    /usr/lib/python3/dist-packages/requests/__init__.py:80: RequestsDependencyWarning: urllib3 (1.26.6) or chardet (3.0.4) doesn't match a supported version!
      RequestsDependencyWarning)
    INFO:root:Temp Path: /tmp/darknet
    INFO:root:Downloading darknet
    INFO:root:Extracting darknet
    INFO:root:Building darknet
    INFO:root:b'gcc -Iinclude/ -Isrc/ -DOPENCV `pkg-config --cflags opencv`  -DGPU -I/usr/local/cuda/include/ -Wall -Wno-unused-result -Wno-unknown-pragmas -Wfatal-errors -fPIC -Ofast -DOPENCV -DGPU -c ./src/gemm.c -o obj/gemm.o'
    In file included from /usr/include/opencv/opencv2/core/types_c.h:82:0,
                     from /usr/include/opencv/opencv2/core/core_c.h:48,
                     from /usr/include/opencv/opencv2/highgui/highgui_c.h:45,
                     from include/darknet.h:25,
                     from ./src/utils.h:5,
                     from ./src/gemm.c:2:
    /usr/include/opencv/opencv2/core/cvdef.h:690:4: error: #error "OpenCV 4.x+ requires enabled C++11 support"
     #  error "OpenCV 4.x+ requires enabled C++11 support"
        ^~~~~
    compilation terminated due to -Wfatal-errors.
    make: *** [obj/gemm.o] Error 1
    INFO:root:b"Makefile:85: recipe for target 'obj/gemm.o' failed"
    INFO:root:Moving to /tmp/pip-req-build-8r9ev6tn/__libdarknet/libdarknet.so
    error: [Errno 2] No such file or directory: '/tmp/darknet/darknet-yolo34py-intergration-v2/libdarknet.so'
    ----------------------------------------
  Rolling back uninstall of yolo34py-gpu
  Moving to /home/justin/.local/lib/python3.6/site-packages/__libdarknet/
   from /home/justin/.local/lib/python3.6/site-packages/~_libdarknet
  Moving to /home/justin/.local/lib/python3.6/site-packages/pydarknet.cpython-36m-aarch64-linux-gnu.so
   from /tmp/pip-uninstall-n9181p4p/pydarknet.cpython-36m-aarch64-linux-gnu.so
  Moving to /home/justin/.local/lib/python3.6/site-packages/yolo34py_gpu-0.2.dist-info/
   from /home/justin/.local/lib/python3.6/site-packages/~olo34py_gpu-0.2.dist-info
ERROR: Command errored out with exit status 1: /usr/bin/python3 -u -c 'import io, os, sys, setuptools, tokenize; sys.argv[0] = '"'"'/tmp/pip-req-build-8r9ev6tn/setup.py'"'"'; __file__='"'"'/tmp/pip-req-build-8r9ev6tn/setup.py'"'"';f = getattr(tokenize, '"'"'open'"'"', open)(__file__) if os.path.exists(__file__) else io.StringIO('"'"'from setuptools import setup; setup()'"'"');code = f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' install --record /tmp/pip-record-l6dttaf9/install-record.txt --single-version-externally-managed --user --prefix= --compile --install-headers /home/justin/.local/include/python3.6m/yolo34py-gpu Check the logs for full command output.

[madhawav]

Hi,

This is because OpenCV requries -std=c++11 compiler flag. To fix, try the following:

At the line 33 of setup.py file, add the following two lines:

extra_compile_args += ["-std=c++11"]
extra_link_args += ["-std=c++11"]

Let me know if this works.

[cedricve]

hey @madhawav similar error.

#31 2.855 /usr/lib/python3/dist-packages/numpy/core/include/numpy/npy_1_7_deprecated_api.h:15:2: warning: #warning "Using deprecated NumPy API, disable it by " "#defining NPY_NO_DEPRECATED_API NPY_1_7_API_VERSION" [-Wcpp]
#31 2.855 #warning "Using deprecated NumPy API, disable it by "
#31 2.855 ^
#31 2.855 pydarknet.cpp: In function 'int pyx_pf_9pydarknet_5Image___cinit(__pyx_obj_9pydarknet_Image*, PyArrayObject*)':
#31 2.855 pydarknet.cpp:2307:3: error: 'Mat' was not declared in this scope
#31 2.855 Mat __pyx_v_m;
#31 2.855 ^
#31 2.855 pydarknet.cpp:2307:3: note: suggested alternative:
#31 2.855 In file included from /usr/local/include/opencv2/core.hpp:59:0,
#31 2.855 from /usr/local/include/opencv2/opencv.hpp:52,
#31 2.855 from bridge.h:59,
#31 2.855 from pydarknet.cpp:640:
#31 2.855 /usr/local/include/opencv2/core/mat.hpp:779:18: note: 'cv::Mat'
#31 2.855 class CV_EXPORTS Mat
#31 2.855 ^
#31 2.855 pydarknet.cpp:2433:3: error: '__pyx_v_m' was not declared in this scope
#31 2.855 __pyx_v_m.create(__pyx_v_r, __pyx_v_c, CV_8UC3);
#31 2.855 ^
#31 2.855 error: command 'x86_64-linux-gnu-gcc' failed with exit status 1
#31 2.855
#31 2.855 ------