Cannot obtain the license for spectreRF when interfacing matlab with spectre

Dear all,

I am current trying to read spectre simulation results into MATLAB using the Spectre/RF MATLAB toolbox, but I got the error message when using cds_srr function in MATLAB:

Error: License for the SpectreRF option could not be obtained.

I refered to the procedure in SpectreRF Simulation Option Theory, and I also checked according to the posts:

https://community.cadence.com/cadence_technology_forums/f/custom-ic-design/34820/not-able-to-interface-spectre-data-with-matlab 

https://community.cadence.com/cadence_technology_forums/f/custom-ic-skill/41322/cds_srr-doesn-t/1359466?focus=true

I checked the license (by echo $LM_LICENSE_FILE) and it is pointed to two license servers (The $CDS_LIC_FILE is undefined).

Also, before launching MATLAB (from the shell window of virtuoso), I set the dynamic library path by

setenv LD_LIBRARY_PATH `cds_root spectre`/tools/dfII:`cds_root spectre`/tools/lib:${LD_LIBRARY_PATH}

(In the manual, it should be setenv LD_LIBRARY_PATH `cds_root spectre`/tools/dfII/lib:`cds_root spectre`/tools/lib:${LD_LIBRARY_PATH}. However, I did not find the lib directory under dfII, so I changed the path to dfII.)

Besides, the MATLABPATH was also set to include the `cds_root spectre`/tools/spectre/matlab.

Versions:

MMSIM: MMSIM131_186

MATLAB: 2016a

Thanks a lot in advance!

Best Regards,

Sai