[web-devel] Yesod devel error: Yesod: panic! System/Plugins.hs:(84, 14)-(86, 29): Non-exhaustive patterns in lambda

[Anton Cheshkov]

anton at anton-laptop:~ $ ghc-pkg list wai-handler-devel
/usr/local/lib/ghc-7.0.3/package.conf.d
/home/anton/.ghc/i386-linux-7.0.3/package.conf.d
   wai-handler-devel-0.4.0

How to detect right version of  wai-handler-devel?

Thanks.


2011/4/26 Greg Weber <greg at gregweber.info>

> Hi all,
>
> You should still be able to still use the old wai-handler-devel
>
> Greg Weber
>
>
> On Mon, Apr 25, 2011 at 9:33 PM, Anton Cheshkov <acheshkov at gmail.com>wrote:
>
>> I have the same problem. It was stop all my work.
>>
>>
>> 2011/4/26 <vagif.verdi at gmail.com>
>>
>> Completely fresh install of yesod 0.8
>>> I migrated my application successfully. It builds and works fine.
>>>
>>> But when trying yesod devel i get this error:
>>>
>>> yesod: panic! (the 'impossible' happened)
>>>  (GHC version 7.0.2 for x86_64-unknown-linux):
>>>        System/Plugins.hs:(84,14)-(86,29): Non-exhaustive patterns in
>>> lambda
>>>
>>>
>>> Also cabal gives me following warning on configure:
>>>
>>> Warning: This package indirectly depends on multiple versions of the same
>>> package. This is highly likely to cause a compile failure.
>>> package haskell-src-meta-0.3 requires syb-0.2.2
>>> package aeson-0.3.2.4 requires syb-0.3
>>>
>>> Not sure if its related to the error in any way, but it does not affect
>>> the
>>> build, and my executable works fine.
>>>
>>> Cheers,
>>> Vagif Verdi
>>>
>>> _______________________________________________
>>> web-devel mailing list
>>> web-devel at haskell.org
>>> http://www.haskell.org/mailman/listinfo/web-devel
>>>
>>
>>
>>
>> --
>> Best regards,
>> Cheshkov Anton
>> Phone: +7 909 005 18 82
>> Skype: cheshkov_anton
>>
>> _______________________________________________
>> web-devel mailing list
>> web-devel at haskell.org
>> http://www.haskell.org/mailman/listinfo/web-devel
>>
>>
>


-- 
Best regards,
Cheshkov Anton
Phone: +7 909 005 18 82
Skype: cheshkov_anton
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