/Users/yuanhuaan/desktop/src/torch-opencv/src/Common.cpp:177:24: error: implicit instantiation of undefined template 'std::__1::array<int, 3>' #122

anthonyyuan · 2016-05-09T04:41:17Z

/Users/yuanhuaan/desktop/src/torch-opencv/src/Common.cpp:177:24: error: implicit instantiation
of undefined template 'std::__1::array<int, 3>'
std::array<int, 3> size;
^
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/../include/c++/v1/__tuple:116:65: note:
template is declared here
template <class _Tp, size_t _Size> struct _LIBCPP_TYPE_VIS_ONLY array;
^
/Users/yuanhuaan/desktop/src/torch-opencv/src/Common.cpp:181:27: error: implicit instantiation
of undefined template 'std::__1::array<unsigned long, 3>'
std::array<size_t, 3> stride;
^
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/../include/c++/v1/__tuple:116:65: note:
template is declared here
template <class _Tp, size_t _Size> struct _LIBCPP_TYPE_VIS_ONLY array;

shrubb · 2016-05-09T11:11:00Z

@anthonyyuan
I don't understand. What is your OS? Platform? Toolchain?

anthonyyuan · 2016-05-09T12:13:06Z

yes ,I use mac 10.11

anthonyyuan · 2016-05-09T12:13:42Z

yuanhuaandeMacBook-Pro:cv yuanhuaan$ luarocks install cv
Installing https://raw.githubusercontent.com/torch/rocks/master/cv-scm-1.rockspec...
Using https://raw.githubusercontent.com/torch/rocks/master/cv-scm-1.rockspec... switching to 'build' mode
Cloning into 'torch-opencv'...
remote: Counting objects: 198, done.
remote: Compressing objects: 100% (176/176), done.
remote: Total 198 (delta 40), reused 77 (delta 19), pack-reused 0
Receiving objects: 100% (198/198), 1.46 MiB | 68.00 KiB/s, done.
Resolving deltas: 100% (40/40), done.
Checking connectivity... done.
cmake -E make_directory build;
cd build;
cmake .. -DCMAKE_BUILD_TYPE=Release -DCMAKE_PREFIX_PATH="/Users/yuanhuaan/torch/install/bin/.." -DCMAKE_INSTALL_PREFIX="/Users/yuanhuaan/torch/install/lib/luarocks/rocks/cv/scm-1";
make

-- The C compiler identification is AppleClang 7.3.0.7030029
-- The CXX compiler identification is AppleClang 7.3.0.7030029
-- Check for working C compiler: /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/cc
-- Check for working C compiler: /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/cc -- works
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Detecting C compile features
-- Detecting C compile features - done
-- Check for working CXX compiler: /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/c++
-- Check for working CXX compiler: /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/c++ -- works
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Detecting CXX compile features
-- Detecting CXX compile features - done
-- Looking for pthread.h
-- Looking for pthread.h - found
-- Looking for pthread_create
-- Looking for pthread_create - found
-- Found Threads: TRUE
-- Found CUDA: /usr/local/cuda (found suitable exact version "7.5")
-- Found Torch7 in /Users/yuanhuaan/torch/install
-- Found CUDA: /usr/local/cuda (found version "7.5")
-- Modules to wrap: cudaobjdetect, cudastereo, cudaimgproc, cudafeatures2d, cudabgsegm, cudaoptflow, cudafilters, cudawarping, cudaarithm, stitching, calib3d, objdetect, video, videoio, superres, photo, ml, imgproc, flann, features2d, highgui, imgcodecs,
-- Configuring done
-- Generating done
-- Build files have been written to: /tmp/luarocks_cv-scm-1-3929/torch-opencv/build
Scanning dependencies of target Common
[ 2%] Building CXX object CMakeFiles/Common.dir/src/Common.cpp.o
/tmp/luarocks_cv-scm-1-3929/torch-opencv/src/Common.cpp:175:24: error: implicit instantiation of undefined
template 'std::__1::array<int, 3>'
std::array<int, 3> size;
^
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/../include/c++/v1/__tuple:117:65: note:
template is declared here
template <class _Tp, size_t _Size> struct _LIBCPP_TYPE_VIS_ONLY array;
^
/tmp/luarocks_cv-scm-1-3929/torch-opencv/src/Common.cpp:179:27: error: implicit instantiation of undefined
template 'std::__1::array<unsigned long, 3>'
std::array<size_t, 3> stride;
^
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/../include/c++/v1/__tuple:117:65: note:
template is declared here
template <class _Tp, size_t _Size> struct _LIBCPP_TYPE_VIS_ONLY array;
^
2 errors generated.
make[2]: *** [CMakeFiles/Common.dir/src/Common.cpp.o] Error 1
make[1]: *** [CMakeFiles/Common.dir/all] Error 2
make: *** [all] Error 2

Error: Build error: Failed building.
yuanhuaandeMacBook-Pro:cv yuanhuaan$

anthonyyuan · 2016-05-09T13:08:38Z

Mac 10.11.4 EI

发件人: Egor Burkov [email protected]
发送时间: 2016年5月9日 19:11
收件人: VisionLabs/torch-opencv
抄送: anthonyyuan; Mention
主题: Re: [VisionLabs/torch-opencv] /Users/yuanhuaan/desktop/src/torch-opencv/src/Common.cpp:177:24: error: implicit instantiation of undefined template 'std::__1::array<int, 3>' (#122)

@anthonyyuanhttps://github.com/anthonyyuan
I don't understand. What is your OS? Platform? Toolchain?

―
You are receiving this because you were mentioned.
Reply to this email directly or view it on GitHubhttps://github.com//issues/122#issuecomment-217837239

shrubb · 2016-05-09T13:33:24Z

@anthonyyuan
Does it work now?

anthonyyuan · 2016-05-09T14:30:55Z

no ,it do not work by require cv !!!!

anthonyyuan · 2016-05-09T14:36:33Z

I know that the reason ,but i have no solution! When i add #include "array" in command.cpp ,but it is not useful .
when i do vi Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/../include/c++/v1/__tuple ,and add #include "array" ,many error come up.

shrubb · 2016-05-09T14:41:55Z

Don't edit system files.

Sorry, I have no Mac to test on. Maybe later sometime.

anthonyyuan · 2016-05-09T14:47:44Z

when i modify that TensorWrapper::operator cv::Mat() {

if (this->tensorPtr == nullptr or this->tensorPtr->nDimension == 0) {
    return cv::Mat();
}

int numberOfDims = tensorPtr->nDimension;
// THTensor stores its dimensions sizes under long *.
// In a constructor for cv::Mat, we need const int *.
// We can't guarantee int and long to be equal.
// So we somehow need to static_cast THTensor sizes.
// TODO: get rid of array allocation

// std::array<int, 3> stride;
// std::copy(tensorPtr->size, tensorPtr->size + tensorPtr->nDimension, size.begin());

// Same thing for stride values.

// std::array<size_t, 3> stride;
// std::copy(tensorPtr->stride, tensorPtr->stride + tensorPtr->nDimension, stride.begin());

int depth = this->typeCode;

// Determine the number of channels.
int numChannels;
// cv::Mat() takes stride values in bytes, so we have to multiply by the element size:
size_t sizeMultiplier = cv::getElemSize(depth);

if (tensorPtr->nDimension <= 2) {
    // If such tensor is passed, assume that it is single-channel:
    numChannels = 1;
} else {
    // Otherwise depend on the 3rd dimension:
    numChannels = tensorPtr->size[2];
    numberOfDims = 2;
}


return  cv::Mat();

}
it can been compiled,

anthonyyuan · 2016-05-09T14:49:13Z

yuanhuaandeMacBook-Pro:build yuanhuaan$ cmake ./
-- Found Torch7 in /Users/yuanhuaan/torch/install
-- Modules to wrap: stitching, calib3d, objdetect, video, videoio, superres, photo, ml, imgproc, flann, features2d, highgui, imgcodecs,
-- Configuring done
-- Generating done
-- Build files have been written to: /Users/yuanhuaan/desktop/src/torch-opencv/build
yuanhuaandeMacBook-Pro:build yuanhuaan$ make
[ 6%] Built target Common
[ 13%] Built target stitching
[ 20%] Built target calib3d
[ 26%] Built target objdetect
[ 33%] Built target video
[ 40%] Built target videoio
[ 46%] Built target highgui
[ 53%] Built target imgcodecs
[ 60%] Built target photo
[ 66%] Built target imgproc
[ 73%] Built target features2d
[ 80%] Built target superres
[ 86%] Built target flann
[ 93%] Built target Classes
[100%] Built target ml
yuanhuaandeMacBook-Pro:build yuanhuaan$

anthonyyuan · 2016-05-09T14:53:51Z

When I make install it my computer ,yuanhuaandeMacBook-Pro:build yuanhuaan$ make install
[ 6%] Built target Common
[ 13%] Built target stitching
[ 20%] Built target calib3d
[ 26%] Built target objdetect
[ 33%] Built target video
[ 40%] Built target videoio
[ 46%] Built target highgui
[ 53%] Built target imgcodecs
[ 60%] Built target photo
[ 66%] Built target imgproc
[ 73%] Built target features2d
[ 80%] Built target superres
[ 86%] Built target flann
[ 93%] Built target Classes
[100%] Built target ml
Install the project...
-- Install configuration: ""
-- Up-to-date: /Users/yuanhuaan/torch/install/../../../../usr/local/lua/cv/_env.lua
-- Up-to-date: /Users/yuanhuaan/torch/install/../../../../usr/local/lua/cv/init.lua
-- Up-to-date: /Users/yuanhuaan/torch/install/../../../../usr/local/lua/cv/_env_cuda.lua
-- Up-to-date: /Users/yuanhuaan/torch/install/../../../../usr/local/lua/cv/Classes.lua
-- Up-to-date: /Users/yuanhuaan/torch/install/../../../../usr/local/lua/cv/constants.lua
-- Up-to-date: /Users/yuanhuaan/torch/install/../../../../usr/local/lua/cv/lib
-- Installing: /Users/yuanhuaan/torch/install/../../../../usr/local/lua/cv/lib/libcalib3d.dylib
-- Installing: /Users/yuanhuaan/torch/install/../../../../usr/local/lua/cv/lib/libClasses.dylib
-- Installing: /Users/yuanhuaan/torch/install/../../../../usr/local/lua/cv/lib/libCommon.dylib
-- Installing: /Users/yuanhuaan/torch/install/../../../../usr/local/lua/cv/lib/libfeatures2d.dylib
-- Installing: /Users/yuanhuaan/torch/install/../../../../usr/local/lua/cv/lib/libflann.dylib
-- Installing: /Users/yuanhuaan/torch/install/../../../../usr/local/lua/cv/lib/libhighgui.dylib
-- Installing: /Users/yuanhuaan/torch/install/../../../../usr/local/lua/cv/lib/libimgcodecs.dylib
-- Installing: /Users/yuanhuaan/torch/install/../../../../usr/local/lua/cv/lib/libimgproc.dylib
-- Installing: /Users/yuanhuaan/torch/install/../../../../usr/local/lua/cv/lib/libml.dylib
-- Installing: /Users/yuanhuaan/torch/install/../../../../usr/local/lua/cv/lib/libobjdetect.dylib
-- Installing: /Users/yuanhuaan/torch/install/../../../../usr/local/lua/cv/lib/libphoto.dylib
-- Installing: /Users/yuanhuaan/torch/install/../../../../usr/local/lua/cv/lib/libstitching.dylib
-- Installing: /Users/yuanhuaan/torch/install/../../../../usr/local/lua/cv/lib/libsuperres.dylib
-- Installing: /Users/yuanhuaan/torch/install/../../../../usr/local/lua/cv/lib/libvideo.dylib
-- Installing: /Users/yuanhuaan/torch/install/../../../../usr/local/lua/cv/lib/libvideoio.dylib
-- Up-to-date: /Users/yuanhuaan/torch/install/../../../../usr/local/lua/cv/imgcodecs/init.lua
-- Up-to-date: /Users/yuanhuaan/torch/install/../../../../usr/local/lua/cv/highgui/init.lua
-- Up-to-date: /Users/yuanhuaan/torch/install/../../../../usr/local/lua/cv/features2d/init.lua
-- Up-to-date: /Users/yuanhuaan/torch/install/../../../../usr/local/lua/cv/flann/init.lua
-- Up-to-date: /Users/yuanhuaan/torch/install/../../../../usr/local/lua/cv/imgproc/init.lua
-- Up-to-date: /Users/yuanhuaan/torch/install/../../../../usr/local/lua/cv/ml/init.lua
-- Up-to-date: /Users/yuanhuaan/torch/install/../../../../usr/local/lua/cv/photo/init.lua
-- Up-to-date: /Users/yuanhuaan/torch/install/../../../../usr/local/lua/cv/superres/init.lua
-- Up-to-date: /Users/yuanhuaan/torch/install/../../../../usr/local/lua/cv/videoio/init.lua
-- Up-to-date: /Users/yuanhuaan/torch/install/../../../../usr/local/lua/cv/video/init.lua
-- Up-to-date: /Users/yuanhuaan/torch/install/../../../../usr/local/lua/cv/objdetect/init.lua
-- Up-to-date: /Users/yuanhuaan/torch/install/../../../../usr/local/lua/cv/calib3d/init.lua
-- Up-to-date: /Users/yuanhuaan/torch/install/../../../../usr/local/lua/cv/stitching/init.lua
yuanhuaandeMacBook-Pro:build yuanhuaan$

anthonyyuan · 2016-05-09T14:55:41Z

uanhuaandeMacBook-Pro:tests yuanhuaan$ th functions.lua
/Users/yuanhuaan/torch/install/bin/luajit: /Users/yuanhuaan/torch/install/share/lua/5.1/trepl/init.lua:384: module 'cv' not found:No LuaRocks module found for cv
no field package.preload['cv']
no file '/Users/yuanhuaan/.luarocks/share/lua/5.1/cv.lua'
no file '/Users/yuanhuaan/.luarocks/share/lua/5.1/cv/init.lua'
no file '/Users/yuanhuaan/torch/install/share/lua/5.1/cv.lua'
no file '/Users/yuanhuaan/torch/install/share/lua/5.1/cv/init.lua'
no file './cv.lua'
no file '/Users/yuanhuaan/torch/install/share/luajit-2.1.0-beta1/cv.lua'
no file '/usr/local/share/lua/5.1/cv.lua'
no file '/usr/local/share/lua/5.1/cv/init.lua'
no file '/Users/yuanhuaan/.luarocks/lib/lua/5.1/cv.so'
no file '/Users/yuanhuaan/torch/install/lib/lua/5.1/cv.so'
no file './cv.so'
no file '/usr/local/lib/lua/5.1/cv.so'
no file '/usr/local/lib/lua/5.1/loadall.so'
stack traceback:
[C]: in function 'error'
/Users/yuanhuaan/torch/install/share/lua/5.1/trepl/init.lua:384: in function 'require'
functions.lua:1: in main chunk
[C]: in function 'dofile'
...uaan/torch/install/lib/luarocks/rocks/trepl/scm-1/bin/th:145: in main chunk
[C]: at 0x0103cb7d00
yuanhuaandeMacBook-Pro:tests yuanhuaan$

victoriastuart · 2016-12-01T01:27:42Z

@anthonyyuan: I was having that same error, pretty much identically (per my system)! :-(

I'm on Arch Linux x86_64 operating (tis work) in an Anaconda Python 2.7 virtual environment, with a previous install of Torch7 (for use with OpenFace), that I wanted to use for this project,

https://github.com/szagoruyko/torch-opencv-demos

I had previously cloned and installed Torch7:

git clone https://github.com/torch/distro.git torch7 --recursive
cd torch7
bash install-deps       ## ignore warnings
./install.sh            ## takes a few minutes
## Added to ~/.bashrc: /mnt/Vancouver/apps/torch7/install/bin/torch-activate
which th
    /mnt/Vancouver/apps/torch7/install/bin/th
source ~/.bashrc
th
      ______             __   |  Torch7
     /_  __/__  ________/ /   |  Scientific computing for Lua.
      / / / _ \/ __/ __/ _ \  |  Type ? for help
     /_/  \___/_/  \__/_//_/  |  https://github.com/torch
                              |  http://torch.ch
    th>

HOWEVER, when trying to run the "demo.lua" in my current work,

/mnt/Vancouver/apps/torch-opencv-demos/imagenet_classification/demo.lua

I was getting the error, above.

So, I installed (Arch Linux) luarocks,

sudo pacman -S luarocks

... even though I presumed it was installed previously.

pacman -Ss luarocks | grep -i installed
    community/luarocks 2.4.1-1 [installed]

which luarocks
    /mnt/Vancouver/apps/torch7/install/bin/luarocks

I THEN "re-installed" cv [I also had previously installed OpenCV 3, i.e. cv2 in Python (I could import cv2 in Python, etc.)], BUT here I then needed to do this last thing (again in my terminal),

luarocks install cv

NOW, when I ran that script,

th demo.lua

it ran (see lossy, animated GIF / video screen capture, below)! :-D

[ That's my first webcam capture with that repo / demo! Not bad - CPU only no GPU! :-) ]

Update:

Also had to do

luarocks install loadcaffe

for the second (age_gender) demo, and run as

th demo.lua camera    ## webcam

not

th demo.lua `locate haarcascade_frontalface_default.xml`

shrubb added a commit that referenced this issue May 9, 2016

Help #122

6db1cf2

shrubb added the help wanted label Aug 17, 2016

victoriastuart mentioned this issue Dec 1, 2016

module 'cv' not found:No LuaRocks module found for cv szagoruyko/torch-opencv-demos#13

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/Users/yuanhuaan/desktop/src/torch-opencv/src/Common.cpp:177:24: error: implicit instantiation of undefined template 'std::__1::array<int, 3>' #122

/Users/yuanhuaan/desktop/src/torch-opencv/src/Common.cpp:177:24: error: implicit instantiation of undefined template 'std::__1::array<int, 3>' #122

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/Users/yuanhuaan/desktop/src/torch-opencv/src/Common.cpp:177:24: error: implicit instantiation of undefined template 'std::__1::array<int, 3>' #122

/Users/yuanhuaan/desktop/src/torch-opencv/src/Common.cpp:177:24: error: implicit instantiation of undefined template 'std::__1::array<int, 3>' #122

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