Dear Experts: 
I set up FS development version. 
And now it shows error message: 

--------------------------------------------------------------------------
GNU libc version: 2.17
ERROR: Systems running GNU glibc version greater than 2.15
  require a newly formatted license file (it's free). Please
  download a new one from the following page:
  http://surfer.nmr.mgh.harvard.edu/registration.html
--------------------------------------------------------------------------

How can I upgrade this license?

thanks
Lawrence
Emory