[Haskell-cafe] Bad interface problem.
allbery.b at gmail.com
Wed Jul 11 16:55:27 CEST 2012
On Wed, Jul 11, 2012 at 5:28 AM, Magicloud Magiclouds <
magicloud.magiclouds at gmail.com> wrote:
> Even I removed all user space packages, the error was still. I think
> it is a ghc pkg problem, that every package register itself as
> package:function while ghc (or cabal?) required
That's not the problem, it's the symptom. Package symbols are always
versioned; ghc only shows the version when it's the only way to
So when it shows you a conflict where one is versioned and the other isn't,
you have multiple versions of a package installed.
> But --constraint='template-haskell-22.214.171.124' did make it compiled.
And that's how you prevent it.
brandon s allbery allbery.b at gmail.com
wandering unix systems administrator (available) (412) 475-9364 vm/sms
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