Hi, That is now some time where i am not try to buld derelict3, Currently my build fail with: derelict/pq/types.d(117): Error: struct derelict.pq.types.PGconn unknown size derelict/pq/types.d(117): Error: struct derelict.pq.types.PGconn no size yet for forward reference Someone know what to do? thanks