[Dbix-class] did not return a true value

[Jennifer Ahn]

hi!

i created a Dual table which selects from dual.
however, i get this error when i try to instantiate the class:

Couldn't instantiate component... "Cannot load schema class 'MyDB': 
DBIx::Class::Schema::throw_exception(): MyDB/Dual.pm did not return a 
true value at /usr/lib/perl5/site_perl/5.8.8/Class/C3/Componentised.pm 
line 126.

has anybody run into a similar problem?

jen