I'm trying to use the installer to install on Trisquel GNU/Linux. I downloaded it and when I run it I get the fallowing. :~/Downloads$ ./Unvanquished-0.9.0-linux-installer.run (main.tcl:2874): GdkPixbuf-WARNING **: Cannot open pixbuf loader module file '/usr/lib/i386-linux-gnu/gdk-pixbuf-2.0/2.10.0/...