Thanks,<br>Alas adding &#39;--constraint=hxt==9.0.\*&#39; after cabal-install command does not help. I get the same error.<br><br><div class="gmail_quote">On Tue, Nov 8, 2011 at 2:10 PM, Erik Hesselink <span dir="ltr">&lt;<a href="mailto:hesselink@gmail.com">hesselink@gmail.com</a>&gt;</span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">This is because hSimpleDB doesn&#39;t specify version ranges on its<br>
dependencies, when it should. Since hxt changed its module structure<br>
going from 9.0 to 9.1, hSimpleDB doesn&#39;t build against 9.0.<br>
<br>
You can try to build it by adding &#39;--constraint=hxt==9.0.\*&#39; after<br>
your cabal-install command. You can also ask the author to add version<br>
ranges to the package.<br>
<br>
Erik<br>
<div><div></div><div class="h5"><br>
On Tue, Nov 8, 2011 at 11:58, dokondr &lt;<a href="mailto:dokondr@gmail.com">dokondr@gmail.com</a>&gt; wrote:<br>
&gt; Hi,<br>
&gt; On Mac OSX, ghc-6.12.3, I have successfully installed the &#39;hxt&#39; package:<br>
&gt; <a href="http://hackage.haskell.org/package/hxt-8.5.2" target="_blank">http://hackage.haskell.org/package/hxt-8.5.2</a><br>
&gt;<br>
&gt; Registering hxt-9.1.4...<br>
&gt; Installing library in /Users/user/.cabal/lib/hxt-9.1.4/ghc-6.12.3<br>
&gt;<br>
&gt; Now when I try to install hSimpleDB<br>
&gt; (<a href="http://hackage.haskell.org/package/hSimpleDB" target="_blank">http://hackage.haskell.org/package/hSimpleDB</a>) I get the following error:<br>
&gt;<br>
&gt; cabal install hSimpleDB<br>
&gt; ...<br>
&gt; Registering HTTP-4000.0.9...<br>
&gt; Installing library in /Users/user/.cabal/lib/HTTP-4000.0.9/ghc-6.12.3<br>
&gt; Registering HTTP-4000.0.9...<br>
&gt; Configuring hSimpleDB-0.3...<br>
&gt; Preprocessing library hSimpleDB-0.3...<br>
&gt; Building hSimpleDB-0.3...<br>
&gt;<br>
&gt; src/Network/AWS/Authentication.hs:47:7:<br>
&gt;     Could not find module `Text.XML.HXT.Arrow&#39;:<br>
&gt;       Use -v to see a list of the files searched for.<br>
&gt; cabal: Error: some packages failed to install:<br>
&gt; hSimpleDB-0.3 failed during the building phase. The exception was:<br>
&gt; ExitFailure 1<br>
&gt;<br>
&gt; Any ideas how to solve this?<br>
&gt;<br>
&gt; Thanks!<br>
&gt; Dmitri<br>
&gt;<br>
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&gt;<br>
&gt;<br>
</blockquote></div><br><br>