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?

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