Comment 1 for bug 1446509

More Information,
Same error when adding invalid feed.

/vocal-1.0+r284/build$ ./vocal
[_LOG_LEVEL_INFO 23:39:02.226581] Application.vala:153: Vocal version: 1.0
[_LOG_LEVEL_INFO 23:39:02.226637] Application.vala:155: Kernel version: 3.16.0-34-generic
[_LOG_LEVEL_WARN 23:39:02.243809] [GLib-GObject] The property GSettings:schema is deprecated and shouldn't be used anymore. It will be removed in a future version.
[_LOG_LEVEL_FATAL 23:39:02.470366] [Gtk] gtk_container_remove: assertion 'GTK_IS_WIDGET (widget)' failed
[_LOG_LEVEL_FATAL 23:39:02.470434] Vocal will not function properly.
[_LOG_LEVEL_INFO 23:39:04.377622] MPRIS.vala:116: name acquired
[_LOG_LEVEL_INFO 23:39:10.431980] Library.vala:311: Adding podcast from file: http://google.cmo
error : No such file or directory
I/O warning : failed to load external entity "http://google.cmo"
[_LOG_LEVEL_WARN 23:39:10.452904] FeedParser.vala:234: Error opening file http://google.cmo
[_LOG_LEVEL_INFO 23:39:10.452928] Library.vala:317: New podcast found to be null.
Segmentation fault (core dumped)

Environment: Ubuntu 14.10