How can I clear de value in a edit text box?

I use the edit box to input some values to the program, but after those values are recorded I want to clear the text in the box.

If I use

set(handles.edit1,'String','') 

it returns me an error:

Error using handle.handle/set

Invalid or deleted object.

Error in Interfaz>alteraciones_s_p_Callback (line 111)

set(handles.edit1,'String','')

Error in gui_mainfcn (line 95)

feval(varargin{:});

Error in Interfaz (line 43)

gui_mainfcn(gui_State, varargin{:});

Error in

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

Error while evaluating UIControl Callback.

[Walter Roberson]

What you used is correct. However, somehow you have deleted the graphics object.

Look through your code. If you have any "clear" statements, you should probably get rid of them.