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Editorial Team
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Asked: 2026-06-13T14:36:46+00:00

I am trying to build the OpenCV samples which come with the source package

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I am trying to build the OpenCV samples which come with the source package and I get the following:

CMake Error at CMakeLists.txt:10 (ocv_check_dependencies):
  Unknown CMake command "ocv_check_dependencies".

I did install OpenCV using

cmake .
make
sudo make install

and I got a tutorial snippet working (thus I suppose it is installed correctly as a library). However, compiling the samples does not work.

I guess I have to somehow configure CMake to have “ocv_check_dependencies” – but how? I am lost!

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1 Answer

  1. Editorial Team

    I got it.

    In order to build the samples one has to change the default configuration for cmake by providing it via -D. What I did wrong was that I tried to execute cmake from within the samples directory.

    The proper way to build the samples is invoking cmake like so (from within the root directory of the unpacked archive):

    cmake -DBUILD_SAMPLES .

    which will turn samples ON. One can proceed using make, make install than. The samples can be found in bin after building.

    See also FAQ

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