??? Undefined function or method 'rest_ReadNiftiImage' for input arguments of type 'char'.

请问,用DPARSFA分析数据,出现如下错误
fanshucai OKMoving Head Motion Corrected Files:c-fangjiajia OKMoving Head Motion Corrected Files:c-chensi OK
??? Undefined function or method 'rest_ReadNiftiImage' for input arguments of type 'char'.

Error in ==> y_FD_Jenkinson at 31
[RefData, RefHead] = rest_ReadNiftiImage(ReferenceImage,1);

Error in ==> DPARSFA_run at 858
            FD_Jenkinson = y_FD_Jenkinson(rpname.name,RefFile);

Error in ==> DPARSFA>pushbuttonRun_Callback at 1601
    [Error]=DPARSFA_run(handles.Cfg);

Error in ==> gui_mainfcn at 96
        feval(varargin{:});

Error in ==> DPARSFA at 33
    gui_mainfcn(gui_State, varargin{:});
 
??? Error while evaluating uicontrol Callback
如何解决,多谢各位老师!