[Haskell-cafe] cabal install lens fails

[John Ky]

Hi Haskell Cafe,

Anyone know about this error?

Installing library in
/Users/johnky/Library/Haskell/ghc-7.6.3/lib/reflection-1.4/lib
Registering reflection-1.4...
Installed reflection-1.4
Configuring mtl-2.0.1.0...
Building mtl-2.0.1.0...
Preprocessing library mtl-2.0.1.0...
[ 1 of 21] Compiling Control.Monad.Writer.Class (
Control/Monad/Writer/Class.hs, dist/build/Control/Monad/Writer/Class.o )
[ 2 of 21] Compiling Control.Monad.State.Class (
Control/Monad/State/Class.hs, dist/build/Control/Monad/State/Class.o )
[ 3 of 21] Compiling Control.Monad.Reader.Class (
Control/Monad/Reader/Class.hs, dist/build/Control/Monad/Reader/Class.o )
[ 4 of 21] Compiling Control.Monad.RWS.Class ( Control/Monad/RWS/Class.hs,
dist/build/Control/Monad/RWS/Class.o )
[ 5 of 21] Compiling Control.Monad.Identity ( Control/Monad/Identity.hs,
dist/build/Control/Monad/Identity.o )
[ 6 of 21] Compiling Control.Monad.Error.Class (
Control/Monad/Error/Class.hs, dist/build/Control/Monad/Error/Class.o )

Control/Monad/Error/Class.hs:93:18: Not in scope: `catch'
Failed to install mtl-2.0.1.0

Cheers,

-John

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