#0  service_proxy_name_changed (connection=0x9da2008, sender_name=0xb5a03b50 "org.freedesktop.DBus", object_path=0xb5a09d40 "/org/freedesktop/DBus", interface_name=0xb5a06d50 "org.freedesktop.DBus", signal_name=0xb5a06ed8 "NameOwnerChanged", parameters=0xb5001c18, user_data=0x9e69e50) at /build/buildd/libindicator-12.10.0/./libindicator/indicator-service-manager.c:544
  [Error: /build/buildd/libindicator-12.10.0/./libindicator/indicator-service-manager.c was not found in source tree]
#1  0xb70869d6 in emit_signal_instance_in_idle_cb (data=data@entry=0xb5a08480) at /build/buildd/glib2.0-2.33.10/./gio/gdbusconnection.c:3715
  [Error: /build/buildd/glib2.0-2.33.10/./gio/gdbusconnection.c was not found in source tree]
#2  0xb6e972c0 in g_idle_dispatch (source=source@entry=0xb5a09d08, callback=0xb7086940 <emit_signal_instance_in_idle_cb>, user_data=0xb5a08480) at /build/buildd/glib2.0-2.33.10/./glib/gmain.c:4797
  [Error: /build/buildd/glib2.0-2.33.10/./glib/gmain.c was not found in source tree]
#3  0xb6e9a043 in g_main_dispatch (context=0x9d966e8) at /build/buildd/glib2.0-2.33.10/./glib/gmain.c:2707
  [Error: /build/buildd/glib2.0-2.33.10/./glib/gmain.c was not found in source tree]
#4  g_main_context_dispatch (context=context@entry=0x9d966e8) at /build/buildd/glib2.0-2.33.10/./glib/gmain.c:3211
  [Error: /build/buildd/glib2.0-2.33.10/./glib/gmain.c was not found in source tree]
#5  0xb6e9a3e0 in g_main_context_iterate (context=0x9d966e8, block=block@entry=1, dispatch=dispatch@entry=1, self=<error reading variable: Unhandled dwarf expression opcode 0xfa>) at /build/buildd/glib2.0-2.33.10/./glib/gmain.c:3282
  [Error: /build/buildd/glib2.0-2.33.10/./glib/gmain.c was not found in source tree]
#6  0xb6e9a83b in g_main_loop_run (loop=loop@entry=0x9e592a8) at /build/buildd/glib2.0-2.33.10/./glib/gmain.c:3476
  [Error: /build/buildd/glib2.0-2.33.10/./glib/gmain.c was not found in source tree]
#7  0xb737e7fd in gtk_main () at /build/buildd/gtk+3.0-3.5.12/./gtk/gtkmain.c:1162
  [Error: /build/buildd/gtk+3.0-3.5.12/./gtk/gtkmain.c was not found in source tree]
#8  0x0804bab6 in main (argc=1, argv=0xbf8ea154) at /build/buildd/unity-6.4.0/services/panel-main.c:431
  [Error: /build/buildd/unity-6.4.0/services/panel-main.c was not found in source tree]