#0  gst_switch_sink_set_child (sink=0x8397138, new_kid=0x0) at gstswitchsink.c:168
  [Error: gstswitchsink.c was not found in source tree]
#1  0xb3119d72 in gst_switch_sink_reset (sink=0x0) at gstswitchsink.c:86
  [Error: gstswitchsink.c was not found in source tree]
#2  0xb78a058c in IA__g_type_create_instance (type=136353272) at /build/buildd/glib2.0-2.15.4/gobject/gtype.c:1561
  [Error: /build/buildd/glib2.0-2.15.4/gobject/gtype.c was not found in source tree]
#3  0xb78857f2 in g_object_constructor (type=136353272, n_construct_properties=1, construct_params=0x8208c30)
#4  0xb7884098 in IA__g_object_newv (object_type=136353272, n_parameters=0, parameters=0x0)
#5  0xb7884c31 in IA__g_object_new_valist (object_type=136353272, first_property_name=0x0, 
#6  0xb7884da0 in IA__g_object_new (object_type=136353272, first_property_name=0x0)
#7  0xb7f483de in gst_element_factory_create () from /usr/lib/libgstreamer-0.10.so.0
#8  0xb7f48cb3 in gst_element_factory_make () from /usr/lib/libgstreamer-0.10.so.0
#9  0x080db142 in pidgin_sound_play_file (filename=0x83506c8 "/usr/share/sounds/purple/login.wav")
#10 0xb7924477 in purple_sound_play_file (filename=0x83506c8 "/usr/share/sounds/purple/login.wav", account=0x0)
#11 0x080dae87 in pidgin_sound_play_event (event=PURPLE_SOUND_BUDDY_ARRIVE) at ../../pidgin/gtksound.c:552
  [Error: ../../pidgin/gtksound.c was not found in source tree]
#12 0xb7924433 in purple_sound_play_event (event=PURPLE_SOUND_BUDDY_ARRIVE, account=0x818d210)
#13 0xb791d2a8 in purple_marshal_VOID__POINTER (cb=0x80dbbb0 <buddy_state_cb>, args=0xbfd4c508 "", data=0x0, 
#14 0xb791dd67 in purple_signal_emit_vargs (instance=0xb797cca8, signal=0xb7960363 "buddy-signed-on", 
#15 0xb791de9c in purple_signal_emit (instance=0x0, signal=0x0) at ../../libpurple/signals.c:434
  [Error: ../../libpurple/signals.c was not found in source tree]
#16 0xb78e491b in purple_blist_update_buddy_status (buddy=0x82f3100, old_status=0x82f34c0)
#17 0xb79158db in purple_prpl_got_user_status (account=0x818d210, name=0x8350b98 "277815084", 
#18 0xb61c44de in purple_parse_oncoming (od=0x856dd58, conn=0x8581a00, fr=0x8581a3c)
#19 0xb61a482d in snachandler (od=0x856dd58, conn=0x8581a00, mod=0x856dfb0, frame=0x8581a3c, snac=0xbfd4c700, 
#20 0xb61b65e1 in flap_connection_recv_cb (data=0x8581a00, source=17, cond=PURPLE_INPUT_READ)
#21 0x080a42f3 in pidgin_io_invoke (source=0x818f2d0, condition=<value optimized out>, data=0x8572270)
#22 0xb783137d in g_io_unix_dispatch (source=0x85886a0, callback=0x80a42b0 <pidgin_io_invoke>, 
#23 0xb77fcd76 in IA__g_main_context_dispatch (context=0x812e388)
#24 0xb7800133 in g_main_context_iterate (context=0x812e388, block=1, dispatch=1, self=0x8103300)
#25 0xb7800517 in IA__g_main_loop_run (loop=0x84cc928) at /build/buildd/glib2.0-2.15.4/glib/gmain.c:2905
  [Error: /build/buildd/glib2.0-2.15.4/glib/gmain.c was not found in source tree]
#26 0xb7ca7d94 in IA__gtk_main () at /build/buildd/gtk+2.0-2.12.6/gtk/gtkmain.c:1163
  [Error: /build/buildd/gtk+2.0-2.12.6/gtk/gtkmain.c was not found in source tree]
#27 0x080bc0e9 in main (argc=) at ../../pidgin/gtkmain.c:872
  [Error: ../../pidgin/gtkmain.c was not found in source tree]