Blender fails to start, libopencv_highgui not found

[Henk van der Laak]

$ sudo apt install blender

$ blender
blender: error while loading shared libraries: libopencv_highgui.so.2.4: cannot open shared object file: No such file or directory

$ ldd /usr/bin/blender | grep found
libopencv_highgui.so.2.4 => not found
libopencv_imgproc.so.2.4 => not found
libopencv_core.so.2.4 => not found

$ cat /etc/lsb-release
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=18.04
DISTRIB_CODENAME=bionic
DISTRIB_DESCRIPTION="Ubuntu 18.04 LTS"

$ uname -a
Linux henklaak-desktop 4.15.0-20-generic #21-Ubuntu SMP Tue Apr 24 06:16:15 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux

[Henk van der Laak (henk-s)]

Problem was on my end with a non standard library in the search path.

[Light Templar (lighttemplar)]

What exactly " a non standard library" mean? I have OpenCV 3.2, which comes from KDE Neon repository and I have same error. what have I do to correct it?

[Henk van der Laak (henk-s)]

I had an older version of libopencv_highgui.so installed in /opt/lib.
This was a remnant from building Blender myself in the recent past.
So "non-standard" means "other version than is in the Ubuntu repo".

[Erich Eickmeyer (eeickmeyer)]

Since a component was used outside of Ubuntu, this bug is invalid.