stucchio / mp3fs Goto Github PK

$ runhaskell Setup.hs build
Building Mp3fs-0.1...
Preprocessing executable 'mp3fs' for Mp3fs-0.1...
[1 of 3] Compiling Mp3fsInternal    ( Mp3fsInternal.hs, dist/build/mp3fs/mp3fs-tmp/Mp3fsInternal.o )

Mp3fsInternal.hs:113:1:
    Non type-variable argument
      in the constraint: MonadReader Mp3fsInternalData m
    (Use FlexibleContexts to permit this)
    When checking that ‘mp3FilterMusicFiles’ has the inferred type
      mp3FilterMusicFiles :: forall (m :: * -> *).
                             MonadReader Mp3fsInternalData m =>
                             [FilePath] -> m [FilePath]

Mp3fsInternal.hs:186:1:
    Non type-variable argument
      in the constraint: MonadReader Mp3fsInternalData m
    (Use FlexibleContexts to permit this)
    When checking that ‘addCleanupRequest’ has the inferred type
      addCleanupRequest :: forall (m :: * -> *).
                           (MonadIO m, MonadReader Mp3fsInternalData m) =>
                           ClockTime -> FilePath -> m ()