g_assertion_message (domain=domain@entry=0x55637821a115 "sharing-cc-panel", file=file@entry=0x55637821a102 "cc-sharing-panel.c", line=line@entry=59, func=func@entry=0x55637821a520 <__func__.55936> "_gtk_builder_get_widget", message=message@entry=0x55637a776450 "assertion failed: (w != NULL)") at ../../../../glib/gtestutils.c:2436
g_assertion_message_expr (domain=domain@entry=0x55637821a115 "sharing-cc-panel", file=file@entry=0x55637821a102 "cc-sharing-panel.c", line=line@entry=59, func=func@entry=0x55637821a520 <__func__.55936> "_gtk_builder_get_widget", expr=expr@entry=0x55637822cae0 "w != NULL") at ../../../../glib/gtestutils.c:2459
_gtk_builder_get_widget (builder=<optimized out>, name=<optimized out>) at cc-sharing-panel.c:59
screen_sharing_hide_cb (widget=<optimized out>, self=<optimized out>) at cc-sharing-panel.c:971
g_closure_invoke (closure=0x55637afce160, return_value=0x0, n_param_values=1, param_values=0x7ffd3f692040, invocation_hint=0x7ffd3f691fc0) at ../../../../gobject/gclosure.c:804