fatal error: opencv2/core/core.hpp: No such file or directory when run capture on Ubuntu 14.04

[Jr-Hung Lin]

Dear all:

I try to run capture from opensource on Ubuntu 14.04.

1. I install all dependencies following the instruction on the website (https://github.com/pupil-labs/pupil/wiki/Dependencies-Installation-Linux)

    , except the ffmpeg modules is https://www.ffmpeg.org/releases/ffmpeg-2.1.8.tar.gz. This can fix some error. 

2. PyAV is working based on some tests.

However when I try to run capture by "sudo python main.py"  under /pupil/pupil_src/capture/.

There are some errors. It says that fatal error: opencv2/core/core.hpp: No such file or directory.

The ../../../shared_cpp/include/common/types.h try to include files  #include <opencv2/core/core.hpp>, but failed.

3. I check whether cv2 is installed using (python import) and it says that the version of cv2 is 2.4.8. But I cannot

    find any files similar to opencv2/core/core.hpp. 

I appreciate if anyone can provide information regarding this issue.

Below are the error message.

======================================================================================

running build_ext

building 'calibration_methods' extension

x86_64-linux-gnu-gcc -pthread -fno-strict-aliasing -DNDEBUG -g -fwrapv -O2 -Wall -Wstrict-prototypes -fPIC -I/usr/lib/python2.7/dist-packages/numpy/core/include -I../../../capture/pupil_detectors/singleeyefitter -I../../../shared_cpp/include -I/usr/local/include/eigen3 -I/usr/include/eigen3 -I/usr/include/python2.7 -c calibration_methods.cpp -o build/temp.linux-x86_64-2.7/calibration_methods.o -std=c++11 -w -O2

cc1plus: warning: command line option ??Wstrict-prototypes??is valid for C/ObjC but not for C++ [enabled by default]

In file included from bundleCalibration.h:23:0,

                 from calibration_methods.cpp:285:

../../../shared_cpp/include/common/types.h:14:33: fatal error: opencv2/core/core.hpp: No such file or directory

 #include <opencv2/core/core.hpp>

                                 ^

compilation terminated.

error: command 'x86_64-linux-gnu-gcc' failed with exit status 1

Process Process-1:

Traceback (most recent call last):

  File "/usr/lib/python2.7/multiprocessing/process.py", line 258, in _bootstrap

    self.run()

  File "/usr/lib/python2.7/multiprocessing/process.py", line 114, in run

    self._target(*self._args, **self._kwargs)

  File "/home/john/pupil/pupil_src/capture/world.py", line 79, in world

    from calibration_routines import calibration_plugins, gaze_mapping_plugins

  File "/home/john/pupil/pupil_src/shared_modules/calibration_routines/__init__.py", line 17, in <module>

    from screen_marker_calibration import Screen_Marker_Calibration

  File "/home/john/pupil/pupil_src/shared_modules/calibration_routines/screen_marker_calibration.py", line 28, in <module>

    from finish_calibration import finish_calibration

  File "/home/john/pupil/pupil_src/shared_modules/calibration_routines/finish_calibration.py", line 19, in <module>

    from optimization_calibration import  bundle_adjust_calibration

  File "/home/john/pupil/pupil_src/shared_modules/calibration_routines/optimization_calibration/__init__.py", line 18, in <module>

    from calibration_methods import  bundle_adjust_calibration

ImportError: No module named calibration_methods

 

[Pupil Labs Info]

The problem here is that gcc cannot find your opencv source files. 

Please make sure your paths are set up right.

M

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[Jr-Hung Lin]

Dear M:

Thanks for your reply. It helps a lot. One more question:

Does it mean that I have to  install OpenCV Source Code or I just need to 

need to modify shared_cpp/include/common/types.h ?

Best

                            John

[Pupil Labs Info]

Sorry to not have replied to this:

You will need to install opencv via:

```shell

apt-get install libopencv-dev

```

Best,

Moritz

To view this discussion on the web visit https://groups.google.com/d/msgid/pupil-discuss/562573ad-4eae-4bcc-8200-5e6acc8f8c4b%40googlegroups.com.

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