When I call 'fit.Decode' method, I get the following error messages:

parsing definition message: validating Session failed: field 8: unknown base type 0X%!X(PANIC=runtime error: index out of range)

or
parsing data message: missing data definition message for local message number 10

or
parsing definition message: validating Session failed: field 9: type BaseSint32 is not compatible with profile type BaseUint32