error while evaluating ui control feedback

I am trying to run code for a set of scripts that are created for a listening experiment (psychoacoustics). I get this error:

Error using close

Reference to non-existent field 'allowed_to_close'.

Error in close

Error in mainmenu>men_close_Callback (line 546)

close all

Error in gui_mainfcn (line 95)

feval(varargin{:});

Error in mainmenu (line 80)

gui_mainfcn(gui_State, varargin{:});

Error in

matlab.graphics.internal.figfile.FigFile/read>@(hObject,eventdata)mainmenu('men_close_Callback',hObject,eventdata,guidata(hObject))

Caused by:

Error while evaluating figure CloseRequestFcn

Error while evaluating Menu Callback.

Error using close

Reference to non-existent field 'allowed_to_close'.

Error in close

Error in load_test_series (line 38)

close all

Error in open_test_series>pb_open_Callback (line 140)

load_test_series(opentestseriespath);

Error in gui_mainfcn (line 95)

feval(varargin{:});

Error in open_test_series (line 74)

gui_mainfcn(gui_State, varargin{:});

Caused by:

Error while evaluating figure CloseRequestFcn

Error while evaluating UIControl Callback.

>>

[Rik]

There is a field allowed_to_close that isn't set when another function calls close all. Why a GUI would contain that in the first place is a bit puzzling, since all relevant handles should be available, so you can explicitly close windows you don't need anymore.

[Marius Tøndel Eliassen]

Ok, thanks for your answer I will try that.