REST GCA 报错

Exception occured.    ()
    Error using rest_gca_coefficient (line 138)
REST doesn't support the selected ROI definition now, Please check:
F:\An\jdata\hypo_Resliced\Resliced_Hypothalamus.nii
    138#line,        rest_gca_coefficient,    in "E:\Download\fMRI_tang\REST\Soft\REST_V1.8_121225\REST_V1.8_121225\rest_gca_coefficient.m"
    957#line,        btnComputeGCA_Callback,    in "E:\Download\fMRI_tang\REST\Soft\REST_V1.8_121225\REST_V1.8_121225\rest_gca_gui.m"
    96#line,        gui_mainfcn,    in "C:\Program Files\MATLAB\R2011b\toolbox\matlab\guide\gui_mainfcn.m"
    39#line,        rest_gca_gui,    in "E:\Download\fMRI_tang\REST\Soft\REST_V1.8_121225\REST_V1.8_121225\rest_gca_gui.m"
    0#line,        @(hObject,eventdata)rest_gca_gui('btnComputeGCA_Callback',hObject,eventdata,guidata(hObject)),    in ""
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Mask 文件见附件，请求老师指点错在哪里，多谢！