XnView Software

these packages are already installed.
where else can the error be contained?

Thanks, Pierre.
I'll try it at everning.

How can I know this? I'm a beginner user

Hello.

I can't start ./xnretro.sh because I got error meggage: error while loading shared libraries: libgio-2.0.so.0: cannot open shared object file: No such file or directory

What program I need to install for start XnRetro (Ubuntu 16.04 x64) ?
Thank's in advance!