It seems I have the right package installed, but blender is still not working

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/usr/lib
❯ ldd =blender | grep "not found"                                                                                                                            2
        libopencv_highgui.so.2.4 => not found

/usr/lib
❯ sudo apt install libopencv-highgui3.2       
Reading package lists... Done
Building dependency tree       
Reading state information... Done
libopencv-highgui3.2 is already the newest version (3.2.0+dfsg-4build2+16.04+xenial+build4).
Starting pkgProblemResolver with broken count: 0
Starting 2 pkgProblemResolver with broken count: 0
Done
0 to upgrade, 0 to newly install, 0 to remove and 0 not to upgrade.

/usr/lib
❯ apt-file search libopencv_highgui                   
^C

/usr/lib
❯ ldd =blender | grep "not found"                                                                                                                          130
        libopencv_highgui.so.2.4 => not found

/usr/lib
❯ apt-file search libopencv_highgui                   
libopencv-highgui-dev: /usr/lib/x86_64-linux-gnu/libopencv_highgui.a
libopencv-highgui-dev: /usr/lib/x86_64-linux-gnu/libopencv_highgui.so
libopencv-highgui2.4v5: /usr/lib/x86_64-linux-gnu/libopencv_highgui.so.2.4
libopencv-highgui2.4v5: /usr/lib/x86_64-linux-gnu/libopencv_highgui.so.2.4.9

/usr/lib 7s
❯ sudo apt install libopencv-highgui2.4v5
Reading package lists... Done
Building dependency tree       
Reading state information... Done
libopencv-highgui2.4v5 is already the newest version (3.2.0+dfsg-4build2+16.04+xenial+build4).
Starting pkgProblemResolver with broken count: 0
Starting 2 pkgProblemResolver with broken count: 0
Done
0 to upgrade, 0 to newly install, 0 to remove and 0 not to upgrade.

/usr/lib
❯ dpkg -S libopencv_highgui.so.2.4       
dpkg-query: no path found matching pattern *libopencv_highgui.so.2.4*

/usr/lib
❯ dpkg-query -L libopencv-highgui2.4v5                                                                                                                       1
/.
/usr
/usr/share
/usr/share/doc
/usr/share/doc/libopencv-highgui2.4v5
/usr/share/doc/libopencv-highgui2.4v5/changelog.Debian.gz
/usr/share/doc/libopencv-highgui2.4v5/copyright


First off, it's super simple to run Blender on Neon.
Go to the Blender website,
download latest version,
extract archive,
run blender executable.

---
Don't know why apt doesn't install Blender properly.
Maybe because Neon focuses on KDE Software.
I just did a test in a virtual machine, running Mint 18.3, which is also
based on Ubuntu 16.04 and the installation worked fine.

Having this issue too.

I prefer to maintain my systems using `apt`.

I take it you're getting this error when attempting to run on the command line:

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

You can get the libopencv-dev to fix this, although it's not going to be so.2.4 but so.3.2

Code: Select all

sudo apt-get install libopencv-dev

Now you have to make a symbolic link:

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cd /usr/lib/x86_64-linux-gnu/
sudo ln -s libopencv_highgui.so.3.2 libopencv_highgui.so.2.4

I've not tried it too much, since I'm at work, and I'm just playing with Blender but that will probably work for you. Using different (newer) versions of libraries is usually OK, but engh, maybe not.. Anyhow, I was able to fire up blender.

Yeah, agree it's annoying that it's not working properly but I'm looking a gifthorse in the mouth.

I made an account just to say I'm also having this issue. I love Neon and this was my first issue with it in over 6 months. Otherwise smooth sailing.

rwicks wrote:I take it you're getting this error when attempting to run on the command line:

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

You can get the libopencv-dev to fix this, although it's not going to be so.2.4 but so.3.2

Code: Select all

sudo apt-get install libopencv-dev

Now you have to make a symbolic link:

Code: Select all

cd /usr/lib/x86_64-linux-gnu/
sudo ln -s libopencv_highgui.so.3.2 libopencv_highgui.so.2.4

I've not tried it too much, since I'm at work, and I'm just playing with Blender but that will probably work for you. Using different (newer) versions of libraries is usually OK, but engh, maybe not.. Anyhow, I was able to fire up blender.

Yeah, agree it's annoying that it's not working properly but I'm looking a gifthorse in the mouth.

Thank you so much for explaining the symlinking process to get Blender working again. +1

rwicks wrote:I take it you're getting this error when attempting to run on the command line:

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

You can get the libopencv-dev to fix this, although it's not going to be so.2.4 but so.3.2

Code: Select all

sudo apt-get install libopencv-dev

Now you have to make a symbolic link:

Code: Select all

cd /usr/lib/x86_64-linux-gnu/
sudo ln -s libopencv_highgui.so.3.2 libopencv_highgui.so.2.4

I've not tried it too much, since I'm at work, and I'm just playing with Blender but that will probably work for you. Using different (newer) versions of libraries is usually OK, but engh, maybe not.. Anyhow, I was able to fire up blender.

Yeah, agree it's annoying that it's not working properly but I'm looking a gifthorse in the mouth.

Yes, this works!
Thank you very much. You are a genius.
I made an account to be able to thank you.