hi all, i tried MASON for the first time and wanted to run the tutorials in order to become familiar with the framework. finally, i try to set up a simulation of some regional small and medium enterprise (SME) markets to simulate the behavior of our project which also bases on the composition of services from different providers - similar to Web-Services or Fada. now i have 2 questions 1) is it possible to model IT SMEs behavior with MASON - maybe someone of you have experience in this field, and 2) why, for god's sake, do i get this error message when i try to run the tutorials: [ The constructor SimState(MersenneTwisterFast, Schedule) is undefined ] I didn't change anything - just tried to run the tutorial in eclipse. thanks in advance thomas