what could be the possible solution for this error?any idea.

Error in matlab.graphics.internal.figfile.FigFile/read (line 31)
hgDataVars = load(filename, '-mat', '-regexp', '^hg[M]');

Error in matlab.graphics.internal.figfile.FigFile

Error in hgload (line 50)
FF = matlab.graphics.internal.figfile.FigFile(filename);

Error in matlab.hg.internal.openfigLegacy (line 57)
    [fig, savedvisible] = hgload(filename, struct('Visible','off'));

Error in gui_mainfcn>local_openfig (line 286)
    gui_hFigure = matlab.hg.internal.openfigLegacy(name, singleton, visible);

Error in gui_mainfcn (line 158)
        gui_hFigure = local_openfig(gui_State.gui_Name, gui_SingletonOpt, gui_Visible);

Error in predict_leaf (line 43)
    gui_mainfcn(gui_State, varargin{:});

EDIT: sonal verma's incorrectly accepted "Answer" deleted and the code uploaded here.

[Geoff Hayes]

sonal - what are you doing when this error occurs? Please describe the steps or a snippet of code.

[Adam Danz]

A minimal working example would be helpful.

[Jan]

Is this the complete message? It tells where the error is, but not what the problem is.

[Geoff Hayes]

sonal - can you attach the GUI fig file too?