Hi,

I added a new transition to my statemachine that is built around boost::msm and I got this error when compiling.

error: wrong number of template arguments (21, should be 20) /boost/mpl/aux_/sequence_wrapper.hpp:154: error: provided for 'templateT10, class T11, class T12, class T13, class T14, class T15, class T16, class T17, class T18, class T19> struct boost::mpl::vector'

I went to add in the beginning of the header file before any boost includes:

#define BOOST_MPL_LIMIT_LIST_SIZE 30

Hi, see http://svn.boost.org/svn/boost/trunk/libs/msm/doc/HTML/ch05.html #define BOOST_MPL_CFG_NO_PREPROCESSED_HEADERS #define BOOST_MPL_LIMIT_VECTOR_SIZE 30 // or whatever you need #define BOOST_MPL_LIMIT_MAP_SIZE 30 // or whatever you need And of course you need to include vector30.hpp HTH, Christophe