If you are in doubt please post your makefile.
fcamera[11826]: GLIB CRITICAL ** GLib-GObject - g_object_get: assertion `G_IS_OBJECT (object)' failed aborting... Program received signal SIGABRT, Aborted. 0x40ff097c in raise () from /lib/libc.so.6 0x40ff097c <raise+64>: cmn r0, #4096 ; 0x1000
gdb --args path_to_fcamera G_DEBUG=fatal-warnings G_DEBUG=fatal-criticals
set env G_DEBUG=fatal-criticals
run