Exception When Retrieving Record Using Nhibernate?

Apr 16, 2010

I am new to NHibernate and have just started right now.I have very simple table contain Id(Int primary key and auto incremented), Name(varchar(100)), Description(varchar(100))

Here is my XML

<class name="DevelopmentStep" table="DevelopmentSteps" lazy="true">
<id name="Id" type="Int32" column="Id">
</id> [code].....

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