GHCi Package problem?

[Martin Erwig]

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?

Thanks,
Martin