[Haskell-cafe] Re: what does the hidden package error mean?

[Deniz Dogan]

I agree, a better error message (or something less cryptic w.r.t. the
new guy) would be very nice.

--Deniz

2009/4/10 Anatoly Yakovenko <aeyakovenko at gmail.com>:
> Ah, bytestring was missing from the build-depends,
>
> what a confusing error message, can we change it to say
>
> "package Foo is missing from the MyPackage.cabal build-depends"
>
> would be a lot more obvious how to fix it.
>
>
> On Fri, Apr 10, 2009 at 1:36 PM, Anatoly Yakovenko
> <aeyakovenko at gmail.com> wrote:
>> I am trying to build ParseP on the latest ghc, and i am getting this error:
>>
>> Text/ParserCombinators/ParseP/Interface.hs:26:17:
>>    Could not find module `Data.ByteString.Char8':
>>      it is a member of package bytestring-0.9.1.4, which is hidden
>>
>> what does "hidden" mean?  why does this work in ghci
>>
>>> import Data.ByteString
>>> import Data.ByteString.Char8
>>>
>>
>> without any problems
>>
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