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Editorial Team
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Asked: 2026-06-04T07:35:13+00:00

I moved to Ubuntu recently and I can’t get openCV working with QtCreator. As

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I moved to Ubuntu recently and I can’t get openCV working with QtCreator. As described in the OpenCv install guide I built and installed the openCV library in /usr/local/lib, I updated opencv.conf in /etc/ld.so.conf.d/ and run sudo ldconfig -v.

But when I try to run a simple “hello world” program that shows an image in a namedWindow I get the following error:

OpenCv Error: Bad flag (parameter or structure field) (Unrecognized or unsupported array type) in cvGetMat, file /home/wedontplay/documenti/Library Installer/OpenCV-2.4.0/modules/core/array.cpp, line 2482 terminate called after throwing an instace of ‘cv::Excepton’ what(): /home/wedontplay/Library Installer/OpenCV-2.4.0/modules/core/src/array.cpp:2482: error: (-206) Unrecognized or unsupported array type in function cvGetMat

Why does Qt search in /home/wedontplay/Documenti/... instead of /usr/local/lib (it is searching in the folder where I have the OpenCv libs source code)?

Any suggestion would be really appreciated.

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1 Answer

  1. Editorial Team

    Add 

    INCLUDEPATH +=  /usr/local/include/Opencvlibname
LIBS+ = -L/usr/local/lib -[module_name1] -[module_name2] ..

    in your .pro file and then try.

    include module name as, for ex if its libopencvmodule1.a ,add it as LIBS+ = -L/usr/local/lib -lopencvmodule1

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