REST

各位老师您好！
请问在启用rest下的Utilities时，出现如下报错，该怎么解决？我用的是matlab7.1.
Error in ==> gui_mainfcn>local_openfig at 216
    gui_hFigure = openfig(name, singleton, 'auto');

Error in ==> gui_mainfcn at 94
        gui_hFigure = local_openfig(gui_State.gui_Name, gui_SingletonOpt);           

Error in ==> rest_Utilities_gui at 29
    gui_mainfcn(gui_State, varargin{:});

Error in ==> rest>Utilities at 501
  rest_Utilities_gui;

Error in ==> rest at 137
    Utilities;

??? Error while evaluating uicontrol Callback.
先谢谢各位老师的回答。