StacktraceTop: g_assertion_message (domain=<optimized out>, file=<optimized out>, line=<optimized out>, func=0x7fa832746620 "call_in_idle_cb", message=0x18f2630 "assertion failed: (vtable != NULL && vtable->method_call != NULL)") at /build/buildd/glib2.0-2.30.0/./glib/gtestutils.c:1425 g_assertion_message_expr (domain=0x7fa832726561 "GLib-GIO", file=0x7fa832744f80 "/build/buildd/glib2.0-2.30.0/./gio/gdbusconnection.c", line=4426, func=0x7fa832746620 "call_in_idle_cb", expr=<optimized out>) at /build/buildd/glib2.0-2.30.0/./glib/gtestutils.c:1436 call_in_idle_cb (user_data=0x1cc0640) at /build/buildd/glib2.0-2.30.0/./gio/gdbusconnection.c:4426 g_main_dispatch (context=0x134cd00) at /build/buildd/glib2.0-2.30.0/./glib/gmain.c:2441 g_main_context_dispatch (context=0x134cd00) at /build/buildd/glib2.0-2.30.0/./glib/gmain.c:3011
StacktraceTop: message (domain=<optimized out>, file=<optimized out>, line=<optimized out>, func=0x7fa832746620 "call_in_idle_cb", message=0x18f2630 "assertion failed: (vtable != NULL && vtable->method_call != NULL)") at /build/ buildd/ glib2.0- 2.30.0/ ./glib/ gtestutils. c:1425 message_ expr (domain= 0x7fa832726561 "GLib-GIO", file=0x7fa832744f80 "/build/ buildd/ glib2.0- 2.30.0/ ./gio/gdbusconn ection. c", line=4426, func=0x7fa832746620 "call_in_idle_cb", expr=<optimized out>) at /build/ buildd/ glib2.0- 2.30.0/ ./glib/ gtestutils. c:1436 0x1cc0640) at /build/ buildd/ glib2.0- 2.30.0/ ./gio/gdbusconn ection. c:4426 buildd/ glib2.0- 2.30.0/ ./glib/ gmain.c: 2441 context_ dispatch (context=0x134cd00) at /build/ buildd/ glib2.0- 2.30.0/ ./glib/ gmain.c: 3011
g_assertion_
g_assertion_
call_in_idle_cb (user_data=
g_main_dispatch (context=0x134cd00) at /build/
g_main_