<div dir="ltr"><div>Yes, you are right thank you. I don't know how could I miss it...<br><br></div>emmanuel<br></div><div class="gmail_extra"><br><br><div class="gmail_quote">On Sun, Mar 17, 2013 at 4:25 PM, David McBride <span dir="ltr"><<a href="mailto:toad3k@gmail.com" target="_blank">toad3k@gmail.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">If you hover over "type Object = HashMap Text Value" in<br>
Data.Aeson.Types in hackage, you will see that the HashMap link links<br>
to <a href="http://hackage.haskell.org/packages/archive/unordered-containers/0.2.3.0/doc/html/Data-HashMap-Strict.html#t:HashMap" target="_blank">http://hackage.haskell.org/packages/archive/unordered-containers/0.2.3.0/doc/html/Data-HashMap-Strict.html#t:HashMap</a>,<br>
which tells you what package it came from and what to import.<br>
<div class="HOEnZb"><div class="h5"><br>
On Sun, Mar 17, 2013 at 11:16 AM, Emmanuel Touzery <<a href="mailto:etouzery@gmail.com">etouzery@gmail.com</a>> wrote:<br>
> Thank you, that was the trick! It would be handy it there was a way through<br>
> the online hackage packages pages to click through the dependencies. I guess<br>
> you checked the .cabal by hand or used some slightly more arcane cabal<br>
> commands to get that information.<br>
><br>
> Thank you again and nice rest of week-end!<br>
><br>
> Emmanuel<br>
><br>
><br>
> On Sun, Mar 17, 2013 at 2:51 PM, Andres Löh <<a href="mailto:andres@well-typed.com">andres@well-typed.com</a>> wrote:<br>
>><br>
>> Hi again.<br>
>><br>
>> > thank you for the tip! It helps but it's not quite there yet. If you<br>
>> > see<br>
>> > the program in attachment, I can make it compile only by commenting the<br>
>> > type<br>
>> > declaration for the second function, otherwise it's the exact same error<br>
>> > message as before.<br>
>><br>
>> You're probably using the wrong HashMap. There are several packages on<br>
>> Hackage implementing similarly-named data structures (which is<br>
>> confusing, I know, but such is life in a decentralized and open<br>
>> world). You should use what aeson is using (because that's the library<br>
>> defining the Object type synonym).<br>
>><br>
>> Looking at the import list of<br>
>><br>
>><br>
>> <a href="http://hackage.haskell.org/packages/archive/aeson/0.6.0.2/doc/html/src/Data-Aeson-Types-Internal.html" target="_blank">http://hackage.haskell.org/packages/archive/aeson/0.6.0.2/doc/html/src/Data-Aeson-Types-Internal.html</a><br>
>><br>
>> we see<br>
>><br>
>> import Data.HashMap.Strict (HashMap)<br>
>><br>
>> and by checking the package dependencies of aeson, we figure out that<br>
>> this module is provided by the unordered-containers package.<br>
>><br>
>> Cheers,<br>
>> Andres<br>
>><br>
>> --<br>
>> Andres Löh, Haskell Consultant<br>
>> Well-Typed LLP, <a href="http://www.well-typed.com" target="_blank">http://www.well-typed.com</a><br>
>><br>
>> _______________________________________________<br>
>> Beginners mailing list<br>
>> <a href="mailto:Beginners@haskell.org">Beginners@haskell.org</a><br>
>> <a href="http://www.haskell.org/mailman/listinfo/beginners" target="_blank">http://www.haskell.org/mailman/listinfo/beginners</a><br>
><br>
><br>
><br>
> _______________________________________________<br>
> Beginners mailing list<br>
> <a href="mailto:Beginners@haskell.org">Beginners@haskell.org</a><br>
> <a href="http://www.haskell.org/mailman/listinfo/beginners" target="_blank">http://www.haskell.org/mailman/listinfo/beginners</a><br>
><br>
<br>
_______________________________________________<br>
Beginners mailing list<br>
<a href="mailto:Beginners@haskell.org">Beginners@haskell.org</a><br>
<a href="http://www.haskell.org/mailman/listinfo/beginners" target="_blank">http://www.haskell.org/mailman/listinfo/beginners</a><br>
</div></div></blockquote></div><br></div>