Hello while trying to build propellor on jessie, I got this error message picca@irdrx1:~/.propellor$ propellor Preprocessing executable 'propellor-config' for propellor-4.9.0... [105 of 120] Compiling Propellor.Property.PropellorRepo ( src/Propellor/Property/PropellorRepo.hs, dist/build/propellor-config/propellor-config-tmp/Propellor/Property/PropellorRepo.o ) src/Propellor/Property/PropellorRepo.hs:17:37: No instance for (Typeable OriginUrl) arising from a use of `toInfo' Possible fix: add an instance declaration for (Typeable OriginUrl) In the second argument of `setInfoProperty', namely `(toInfo (InfoVal (OriginUrl u)))' In the expression: setInfoProperty p (toInfo (InfoVal (OriginUrl u))) In an equation for `hasOriginUrl': hasOriginUrl u = setInfoProperty p (toInfo (InfoVal (OriginUrl u))) where p :: Property UnixLike p = property ("propellor repo url " ++ u) $ do { curru <- liftIO getRepoUrl; .... } Resolving dependencies... Cheers