Error #1 is a bug I'm working on fixing at the moment... the partial classes will build properly, and the warning can be ignored. Error #2 is probably due to the fact that you have a field within the database that has the name "TableName" and you cannot have two properties with the same name on a class. So, you can either change the TableName column in the database to something else, or you can customize the property and copy in some custom code to replace the property. Basically, you can take the property code right now and copy it into the custom code field and just change the name to "TableName2" or something like that.