Invalid primary key datatype [int]

I am using Afo Castle AR Code Generator v1.0.0.4 at fi开发者_如何学JAVArst I was receiving errors for using tinyint as a primary key so I changed those to int but the only error I have left and can't seem to get rid of is

Invalid primary key datatype [int] for table dbo.Level_Code. Only int identity and uniqueidentifier primary keys are supported in the free version.

The field is already an int in the database. I even tried changing it from an int to tinyint and then back but that still doesn't work.

Any suggestions?

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The error message says it only supports an autogenerating int key. Make the int an identity as well and you should be fine.