Closed carassius1014 closed 7 months ago
Compile extensible-skeleton with mtl newer than 2.3. mtl has removed re-exports of Control.Monad (which exports MonadPlus) since version 2.3,
extensible-skeleton
mtl
Control.Monad
MonadPlus
Remove re-exports of Control.Monad, Control.Monad.Fix and Data.Monoid modules
from ChangeLog
Compile
extensible-skeleton
withmtl
newer than 2.3.mtl
has removed re-exports ofControl.Monad
(which exportsMonadPlus
) since version 2.3,from ChangeLog