Hi everybody,

I'm having a bit of a problem with Parsec. The most relevant error message is:

Couldn't match expected type `Text.Parsec.Prim.ParsecT

String () Control.Monad.Identity.Identity String'

against inferred type `parsec-2.1.0.1:Text.ParserCombinators.Parsec.Prim.Parser

[Char]'

In the expression: countMinMax ...

So apparently, the module/package that defines countMinMax and the current module are using different versions of Parsec. My global GHC database has Parsec 3.1.1 installed, but each package has the constraint

parsec >=2.1 && <2.2

Both modules use the exact same import line:

import Text.ParserCombinators.Parsec -- Lime.Data.IPAddress

import Text.ParserCombinators.Parsec -- Lime.Utility.Parsec

countMinMax :: (Integral n) => n -> n -> Parser a -> Parser [a]

and

the expression GHC is complaining about above has type Parser String.

The cabal-dev package database contains only one version of Parsec:

parsec-2.1.0.1-190ec41e7316b7eb7fddf355acddd826.conf

What's going on here?