@suzhen, Natural Capital Project does not make SLAMM, so we are not able to help troubleshoot it. I know that there is an example in the User Guide where some of our researchers used SLAMM as part of an analysis, along with InVEST, but SLAMM is not our software. The User Guide text provides a link to http://www.warrenpinnacle.com/prof/SLAMM/, which did make the SLAMM software, and I suggest searching and perhaps posting to their Forum for assistance.
~ Stacie