[Haskell-beginners] [web-devel] yesod dependency hell

[Haisheng Wu]

I think I experience similar situation.
I did some change to yesod-auth-0.4.x (Im using yesod-0.8.x which needs
yesod-auth-0.4.x) locally but it failed to compile because of dependences.
Then I change my idea to make change its low level package authenticate.
authenticate compile successfully but failed to rebuild yesod itself.

Basically I spend more than half day trying to "Apply" my change which is
only one line added.
However, till now, I have no lucky.

I'm wondering any best practice of Cabal for such scenario.
Am I doing something wrong?

I really expect a simple and elegant way.~
Appreciate your help.

-Haisheng


On Thu, Jun 23, 2011 at 6:19 AM, Michael Litchard <michael at schmong.org>wrote:

> The solution seems to be to remove yesod from the build-depends
> section. I'm having other problems, don't think it's related.
>
> On Wed, Jun 22, 2011 at 2:52 PM, Michael Litchard <michael at schmong.org>
> wrote:
> > Thomas,
> >             I tried what you suggested and I still have the exact same
> problem.
> >
> > On Wed, Jun 22, 2011 at 1:50 PM, Michael Litchard <michael at schmong.org>
> wrote:
> >> My thinking is that this problem comes up anytime someone wants to
> >> play around with experimental code. As evidenced by the
> >> yesodwiki.cabal file, I think there's a more straightforward solution.
> >> I'm just not seeing it.
> >>
> >> On Wed, Jun 22, 2011 at 1:46 PM, Thomas Hartman
> >> <thomashartman1 at googlemail.com> wrote:
> >>> one idea: move .ghc and .cabal to temp directory.
> >>>
> >>> start over with a clean slate.
> >>>
> >>> On Wed, Jun 22, 2011 at 1:30 PM, Michael Litchard <michael at schmong.org>
> wrote:
> >>>> Configuring Aframe-0.0.1...
> >>>> Warning: This package indirectly depends on multiple versions of the
> same
> >>>> package. This is highly likely to cause a compile failure.
> >>>> package yesod-auth-0.4.0.2 requires yesod-form-0.1.0.1
> >>>> package yesod-0.8.2.1 requires yesod-form-0.1.0.1
> >>>> package Aframe-0.0.1 requires yesod-form-0.2.0
> >>>>
> >>>> I specified in Aframe.cabal yesod-form 0.2.0. The above warning is
> >>>> what I was looking to avoid. What is the solution to this problem? I
> >>>> could not find an obvious solution in yesodwiki.cabal, even though I
> >>>> see it's doing something similar to what I want. How did you deal with
> >>>> the above warning message?
> >>>>
> >>>> On Wed, Jun 22, 2011 at 12:32 PM, Michael Snoyman <
> michael at snoyman.com> wrote:
> >>>>> Have a look at the yesodwiki[1]; basically, you can't use the yesod
> >>>>> package itself, only the subpackages. This is by design so that a
> >>>>> single Yesod release will keep API stability, while users can still
> >>>>> experiment with newer versions of underlying packages.
> >>>>>
> >>>>> Michael
> >>>>>
> >>>>> [1]
> https://github.com/snoyberg/yesodwiki/blob/master/yesodwiki.cabal
> >>>>>
> >>>>> On Wed, Jun 22, 2011 at 10:29 PM, Michael Litchard <
> michael at schmong.org> wrote:
> >>>>>> I need to use yesod-form 0.2.0. The problem is that the yesod
> package,
> >>>>>> and the yesod-auth package expect yesod-form to be 0.1.0*
> >>>>>> I tried changing the .cabal files but that breaks in ways that makes
> >>>>>> me think the fix is not so simple. How do I go about being able to
> use
> >>>>>> yesod-form 0.2.0
> >>>>>>
> >>>>>> _______________________________________________
> >>>>>> web-devel mailing list
> >>>>>> web-devel at haskell.org
> >>>>>> http://www.haskell.org/mailman/listinfo/web-devel
> >>>>>>
> >>>>>
> >>>>
> >>>> _______________________________________________
> >>>> web-devel mailing list
> >>>> web-devel at haskell.org
> >>>> http://www.haskell.org/mailman/listinfo/web-devel
> >>>>
> >>>
> >>
> >
>
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