[Haskell-cafe] There is something wrong with hprotoc-0.3.1 package.

Hi, I wanted to install this package. Well, Building hprotoc-0.3.1... ... [3 of 7] Compiling Text.ProtocolBuffers.ProtoCompile.Parser ... Text/ProtocolBuffers/ProtoCompile/Parser.hs:48:0: Type synonym `GenParser' should have 2 arguments, but has been given 1 In the type synonym declaration for `P' And it just stopped here.