MATLAB: How to call variable from another function in matlab – Reference to non-existent field ‘nameoffile’.

MATLABveriable

Hello,
I need use veriable from another function,
  • Undefined function or variable 'nameoffile'.*
i tried fix it, but i didnt.
    function Imageupdate_Callback(hObject, eventdata, handles)
  % hObject    handle to Imageupdate (see GCBO)
  % eventdata  reserved - to be defined in a future version of MATLAB

  % handles    structure with handles and user data (see GUIDATA)

  [FileName, Path] = uigetfile('*.bmp; *.png; *.jpg', 'Resim seçin' );
  nameoffile = fullfile(Path,FileName);
imshow(nameoffile);
% --- Executes on button press in pushbutton2.
function pushbutton2_Callback(hObject, eventdata, handles)
% hObject    handle to pushbutton2 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
     Pname = get(handles.PersonName,'String');
     PSurname = get(handles.PersonSurname,'String');
     Bday = get(handles.PersonBDay,'String');
     Bplace = get(handles.PersonBP,'String');
       Psex=get(handles.PGSex, 'SelectedObject');
       Psex=get(Psex,'Tag');
       PPhone = get(handles.PPhone,'String');
       Padd = get(handles.Padd,'String');
%  if isempty(Pname)
  %  fprintf('Error: Enter Text first\n');
%  else
   % Write code for computation you want to do 
%  end
    connectface = database('facerecognition','root','');
    PersonalID = exec(connectface,'Select max(PID) from person'); 
    PersonalID = fetch(PersonalID) 
    PersonalID = PersonalID.data
    close(connectface);
addaperson(Pname,PSurname,Bday,Bplace,Psex,PPhone,Padd);
addaface(nameoffile,PersonalID);
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