Maybe I export State from one library version and instance from another? 2012/6/23 Anton Kholomiov <anton.kholom...@gmail.com>
> Indeed, thank you. mtl is cruel with me for > the second time uumpf. But it's strange mtl > just reexports transformer's module > > > > > 2012/6/23 MigMit <miguelim...@yandex.ru> > >> >> On 23 Jun 2012, at 21:27, Anton Kholomiov wrote: >> >> > At last.. >> > >> > No, it wants me to define an instance for >> > (StateT s) which is supposed to be defined >> > be the authors of the library. >> > >> > Actually I discovered that I have two libraries >> > called transformers. >> > >> > transformers-0.2.2.0 >> > transformers-0.3.0.0 >> > >> > So when I'm doing >> > >> > import Control.Monad.Trans (0.2.2.0) >> >> Ehm... seems like you're importing mtl instead of transformers. AFAIK >> there is no "Control.Monad.Trans" module in transformers. >> >> > >> > I get the error >> > >> > And when I'm doing >> > >> > import Control.Monad.Trans.Class (0.2.2.0) >> > >> > It compiles. >> > >> > >> > Anton >> > >> > _______________________________________________ >> > Haskell-Cafe mailing list >> > Haskell-Cafe@haskell.org >> > http://www.haskell.org/mailman/listinfo/haskell-cafe >> >> >
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