Question on Spectre/RF matlab co-simulation

Hi Dear experts, I have successfully set the environment of MATLAB and spectre and am using Matlab R2009 and MMSIM6.2. >> help cds_srr sig = cds_srr(dirname, dataset, signame, verbose) dirname: the path of psf or stt2 results dataset: the dataset name in the results, when only 'result dir' give out, the command will return all dataset names. signame: the name of signal in the dataset, the command will return all signal names in the dataset, when this parameter unset. However, when I set the run directory and read data out using cds_srr(**). There is an un-understandable error. >> rdir ='simulation/LNA_1/spectre/schematic/psf'; >> tdout =cds_srr(rdir, 'sweeppss_pss_td-sweep', 'RFout'); ??? Undefined function or method 'cds_innersrr' for input arguments of type 'char'. Error in ==> cds_srr at 20 sig = cds_innersrr(dirname, dataset, signame, verbose); And I looked into the directory of .m file in the /tools/spectre/matlab. There is a cds_innersrr.mexglx file existing other than cds_innersrr.m file. I can't understand it, and could you please help me solve this problem. Thanks! Lei