On 03 February 2005 16:11, Martin Erwig wrote:
> On Feb 3, 2005, at 2:13 AM, Simon Marlow wrote:
>
>>>
>>> Prelude> Data.Graph.Inductive.Example.clr486
>>>
>>> GHCi runtime linker: fatal error: I found a duplicate definition
>>> for symbol
>>> _DataziGraphziInductiveziInternalziFiniteMap_Empty_closure
>>> whilst processing object file
>>> ./Data/Graph/Inductive/Internal/FiniteMap.o This could be caused
>>> by:
>>> * Loading two different object files which export the same
>>> symbol
>>> * Specifying the same object file twice on the GHCi command
>>> line
>>> * An incorrect `package.conf' entry, causing some object to
>>> be loaded twice. GHCi cannot safely continue in this
>>> situation. Exiting now. Sorry.
>>>
>>> I don't know what to do about this.
>>
>> Looks like GHCi is trying to load an object file for a module that is
>> already present in the package. If
>> Data.Graph.Inductive.Internal.FiniteMap is present in the fgl
>> package, then you shouldn't also have it in the current directory,
>
> I don't.
>
> There is another FiniteMap.hi (and FiniteMap.p_hi) in
>
> /usr/local/lib/ghc-6.2/imports/Data
>
> Could this be the offender?
No. The error message says that it is trying to load
./Data/Graph/Inductive/Internal/FiniteMap.o. but that module is already
part of the fgl package isn't it? (when I said current directory, I
really meant "relative to the current directory").
Cheers,
Simon
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