[Haskell-cafe] errors while installing yesod 0.8

[Michael Litchard]

yesod-0.8.0 depends on monad-control-0.2.0.1 which failed to install.
yesod-auth-0.4.0 depends on monad-control-0.2.0.1 which failed to install.
yesod-core-0.8.0 depends on monad-control-0.2.0.1 which failed to install.
yesod-form-0.1.0 depends on monad-control-0.2.0.1 which failed to install.
yesod-json-0.1.0 depends on monad-control-0.2.0.1 which failed to install.
yesod-persistent-0.1.0 depends on monad-control-0.2.0.1 which failed to
install.
yesod-static-0.1.0 depends on monad-control-0.2.0.1 which failed to install.


This is what happened after I did cabal update, then cabal-dev install
yesod. This is the original error I received.
So what else can I try?

On Tue, Apr 19, 2011 at 3:30 PM, Rogan Creswick <creswick at gmail.com> wrote:
> On Tue, Apr 19, 2011 at 3:10 PM, Michael Litchard <michael at schmong.org> wrote:
>> New information, may be helpful.
>>
>> I manually installed hamlet 0.8 with cabal-dev, and it seemed to
>> install. Here is the message
>>
>>
>> Registering hamlet-0.8.0...
>> Installing library in
>> /home/mlitchard/hamlet-0.8.0/cabal-dev//lib/hamlet-0.8.0/ghc-6.12.3
>> Registering hamlet-0.8.0...
>
> It looks like you manually downloaded the hamlet-0.8.0.tar.gz,
> unpacked it, and ran cabal-dev install from inside there -- is that
> right? (There's nothing wrong with doing it that way, but it doesn't
> quite do what you expected, based on the rest of your email.  Also, if
> my assumption is wrong, then the rest of my advice may not help.)
>
> First, it's important to know that cabal-dev sandboxes everything it
> can.  If you want to install hamlet into your .cabal directory, then
> you need to use cabal, not cabal-dev.  Cabal-dev is meant to keep
> everything for a given project separate from everything else -- in
> this way you can have multiple projects that depend on conflicting
> libraries building at the same time, and it also means that
> coincidental changes to your user package database won't cause
> spurious *successes* when you build something, which is a surprisingly
> common problem.  Unfortunately this means that the first time you
> build a project with cabal-dev, it tends to take a long time (it has
> to build everything it depends on).
>
> Now, there are (at least) two important take-away points /
> implications of using cabal-dev:
>
>  (1) cabal-dev won't install a library into a standard location.
> That's by design, so you don't usually want to cabal-dev install
> dependencies manually.
>  (2) cabal-dev uses the local hackage cache to select packages in the
> same way cabal does (cabal-dev actually just uses cabal to do this).
>
>> mlitchard at apotheosis:~/yesod-0.8.0$ cabal-dev install
>> Resolving dependencies...
>> cabal: cannot configure yesod-0.8.0. It requires hamlet ==0.8.*
>> There is no available version of hamlet that satisfies ==0.8.*
>
> I think you just need to run 'cabal update' so cabal-dev can see the
> latest version of hamlet, after which you can cabal-dev install yesod.
>
> There are a couple other things to try if that doesn't work for some reason.
>
> --Rogan
>
>
>>
>> I noticed it did not install in the $HOME/.cabal/ path. How do make
>> sure it does that?
>> I think if I can get it to install in the right place this will work out.
>>
>> On Tue, Apr 19, 2011 at 2:52 PM, Rogan Creswick <creswick at gmail.com> wrote:
>>> On Tue, Apr 19, 2011 at 2:18 PM, Michael Litchard <michael at schmong.org> wrote:
>>>> mlitchard at apotheosis:~/monad-control$ cabal install
>>>> Resolving dependencies...
>>>> Configuring monad-control-0.2.0.1...
>>>> cabal: Error: some packages failed to install:
>>>> monad-control-0.2.0.1 failed during the configure step. The exception was:
>>>> ExitFailure 11
>>>>
>>>>
>>>> note: I've been trying to use the cab command to manage my packages, I
>>>> get the same error as above when I use cab instead of cabal.I mention
>>>> this just in case there is some unforseen problem having to do with
>>>> cab/cabal interaction.
>>>>
>>>> Has anyone experienced this problem, or know what I can do to get more
>>>> useful error messages that might reveal the cause of the breakage?
>>>
>>> You might learn more by issuing the configure / build steps manually
>>> (I think `cabal configure` will produce an error).  Upping the
>>> verbosity will also help:
>>>
>>> # get pages and pages of details:
>>> $ cabal install --verbose=3
>>>
>>> I would first suggest trying cabal-dev, though (cab can delegate to
>>> cabal-dev now too, but I haven't played with it yet).
>>>
>>> $ cabal-dev install yesod-0.8
>>>
>>> will either work or fail in a way that we can more easily reproduce.
>>>
>>> --Rogan
>>>
>>
>