Please add a JIRA ticket for a possible improvement.
Catch the exception at INSERT/UPDATE : Wrong amount of parameter during
INSERT/UPDATE (possible cause: duplicated property/column names in the
mapping) of <the-class>. Solution: remove the duplicated property/column or
add the appropriate tag/s (insert='fase' and/or  update='false'.

Thanks.

On Fri, Feb 4, 2011 at 7:27 AM, Petrander <[email protected]> wrote:

> Aaargh! It was so much on a wrong leg with this infamous “Invalid
> Index n for this SqlParameterCollection with Count=n” error that I
> overlooked the obvious: A duplicate mapping of a field for ONE of the
> classes.
> In that particular mapping I left this error, where the primary key is
> also defined as a property:
>
>     <id name="ID" column="ID">
>       <generator class="guid" />
>     </id>
>     <property name="ID" column="ID" />
>
> Now that was a waste of time trying to debug that looking in all the
> wrong places!
>
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-- 
Fabio Maulo

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