unitOfWork.SaveChanges() - This database provider does not support the IdentityColumn identity method

I'm using Oracle 11g database, and I have created a table

create table merch.vendor_catalog_item
(
    catalog_item_id number(15) not null,
    <snip>

which uses a sequence for the PK value

create sequence merch.seq_catalog_item_id increment by 1 start with 1 nomaxvalue nocycle order nocache

However I get the following error when saving: unitOfWork.SaveChanges();

• This database provider does not support the IdentityColumn identity method

In my web.config file, I have the identityMethod set to "Sequence".

<lightSpeedContexts>
<add name="Development"
     connectionStringName="Development"
     dataProvider="Oracle9"
     pluralizeTableNames="False"
     identityMethod="Sequence" />

What am I missing here?

Thanks, Carl

I updated the Entity's Identity Method property to be "Sequence" in the data model.
However, now I'm getting.

ORA-02289: sequence does not exist

Where is the documentation for this? I've search MindScape's web site and nothing shows up. Not even sample code. Arg!!!

How do I specify the sequence when adding a new Entity.

I got this working by running the following line within Oracle 9:

drop sequence merch.LightSpeed
GO
create sequence merch.LightSpeed increment by 10 start with 1
GO

FYI here is the docs page which details some more about identity methods and their use: http://www.mindscapehq.com/documentation/lightspeed/Controlling-the-Database-Mapping/Identity-Generation

Jeremy