Error using matlab.ui.​control.UI​Control/se​t Invalid or deleted object inside a while loop

Hi.

I am trying to continuously (in real time) set a clock string in my guide and plot data in an axes window. all goes fine except when i finish/end the gui this error occurs. Can you help me?

Error using matlab.ui.control.UIControl/set Invalid or deleted object.

Error in log_display6>start_button_Callback (line 84) set(handles.clock,'String' [num2str((c(4))),':',num2str((c(5))),':',num2str(fix(c(6)))]);

Error in gui_mainfcn (line 95) feval(varargin{:});

Error in log_display6 (line 42) gui_mainfcn(gui_State, varargin{:});

Error in matlab.graphics.internal.figfile.FigFile/read>@(hObject,eventdata)log_display6('start_button_Callback',hObject,eventdata,guidata(hObject)) Error while evaluating DestroyedObject Callback.

    function start_button_Callback(hObject, eventdata, handles)
    (...)  
    axes(handles.axes4);
    hold on;
    stop_state=get(handles.end_button,'Value');

         while ~isequal(stop_state,1) 
              c=clock;
   *          set(handles.clock,'String',[num2str((c(4))),':',num2str((c(5))),':',num2str(fix(c(6)))]);

              t1=now;
              w=0;
              plot(t1,w);
              datetick('x','HH:MM');
              xlim([t0 t1]);
              drawnow;
           pause(1);
         end

[Walter Roberson]

You seem to have a handles.end_button . Is there a callback associated with that?

Is it possible that you are closing the figure that the object in handles.clock is in?

[Mafalda Couto]

True i was! Solved! Thank you so much Walter.. Cheers