to use this you will need to have SNOPT set up on your system. details on that can be found on the snopt website.
get a license from here.
https://ccom.ucsd.edu/~optimizers/licensing/
and information and how to set is up is here.
https://ccom.ucsd.edu/~optimizers/docs/snopt/linking.html
the SNOPT code will not work unless a license is obtained and set linked aswell.
i will add instructions on that in the wiki later on at some point.