ImportError: liblensfun.so.1 on Mint 17.2

[Fi156]

Hi,

the fix:

echo "/usr/local/lib" | sudo tee /etc/ld.so.conf.d/99local.conf
sudo ldconfig

does not work for me.

When installed with "apt-get" the libraries are located in a subdirectory of /usr/local/lib:

/usr/local/lib
├── x86_64-linux-gnu
│   ├── pkgconfig
│   │   └── lensfun.pc
│   ├── liblensfun.so.1 -> liblensfun.so.0.3.2
│   ├── liblensfun.so.0.3.2
│   └── liblensfun.so -> liblensfun.so.1

Changing the location to the subdirectory works for me:

echo "/usr/local/lib/x86_64-linux-gnu" | sudo tee /etc/ld.so.conf.d/99local.conf
sudo ldconfig

[letmaik]

Thanks for reporting. I'll try to find out why this happens in the first place, but I'm no expert on this and I will probably ask the lensfun guys about it, maybe they have an idea. If we come to a conclusion I will come back to this issue and possibly adjust the README.

[letmaik]

Can you please let me know how exactly you installed the liblensfun library on your system? Typically, when installed via apt-get, the libraries don't use the /usr/local folder, only when manually compiled and installed. Also, version 0.3.2 is not yet released on Ubuntu/Debian repos (according to a lensfun developer).

[Fi156]

Sorry, yes it may be that the used library was compiled by myself some time ago. I am pretty sure that I used this manual: http://lensfun.sourceforge.net/development/

So I deleted 99local.conf as well as the directory x86_64-linux-gnu. The libraries installed with apt-get are located in:

/usr/lib/liblensfun.so
/usr/lib/liblensfun.so.0
/usr/lib/liblensfun.so.0.2.8

Afterwards the import error comes back again. Linking to this dir with:

echo "/usr/lib/ | sudo tee /etc/ld.so.conf.d/99local.conf
sudo ldconfig

does not work and I think that it does not make sense also...

[letmaik]

Note that you also have to reinstall lensfunpy to use the new path. If that still doesn't work then there's probably some left overs from your manual liblensfun installation in the pgkconfig (which would point to a non-existant folder).

[Fi156]

Ok, after reinstalling lensfunpy is working now!

Thank you!

I think the following happened:

• The apt-get version was installed some time ago with another program.
• I installed a newer version with make.
• The installation of liblensfunpy was linked against the self compiled version.
• I got the import error message, because of the wrong directory.

So when using a self compiled version it is still needed to link /usr/local/lib/x86_64-linux-gnu instead of /usr/local/lib.