Grigory Sarnitskiy <sargrigory at ya.ru> writes: > Hello! I'm trying to derive Binary for StdGen with DrIFT: [...] > but I got error "DrIFT: can't find module System/Random" > What shall I do? I'd use http://hackage.haskell.org/packages/archive/derive/2.0.1/doc/html/Data-Derive-Binary.html instead.