怎么办啊，求助

DICOM整理时一直都不行
报错如下

Warning: Directory "F:\matlab7.0\work" already exists.
> In mkdir at 116
  In rest_DicomSorter_gui>btnRun_Callback at 175
  In gui_mainfcn at 75
  In rest_DicomSorter_gui at 26
??? Error using ==> images\private\dicom_set_mmeta_encoding
Could not determine file encoding.

Error in ==> rest_DicomSorter at 30
    dicominfotmp = dicominfo([rawdir,filesep,rawdata(i).name]);

Error in ==> rest_DicomSorter_gui>btnRun_Callback at 180
    dirlist=[rest_DicomSorter(handles.Cfg.DataDirs{i},outfile,dicomtype,handles.Cfg.DirectoryHierarchy);dirlist];

Error in ==> gui_mainfcn at 75
        feval(varargin{:});

Error in ==> rest_DicomSorter_gui at 26
    gui_mainfcn(gui_State, varargin{:});

??? Error while evaluating uicontrol Callback.

>>

这改怎么办啊 ，求教！！