On 2013-09-25 at 04:52:33 +0200, Kazu Yamamoto (山本和彦) wrote: > It seems to me that "newSession" does not exist. But it is used in > comments and error messages. fwiw, it seems to have been removed back in 2008: http://git.haskell.org/ghc.git/commitdiff/1c7d0ac0a433f85effeb5e9cfb6b303c26b201d1