Yeah, I ran into it while going through that exercise too. For some reason they have an example that references a table that doesn't exist. I'm not sure if they intended to have the reader create the table and missed it, but I created the table myself so
that it can compile. It's not the best table definition in the world, but it causes the task to compile without error. Of course, the source data has non-numeric ages, which will cause the Data Flow task to fail, but maybe that's covered in another chapter.
USE [AdventureWorks2008]
GO
CREATE TABLE [dbo].[stg_Customer](
[FirstName] [nvarchar](255) NULL,
[LastName] [nvarchar](255) NULL,
[FullName] [nvarchar](511) NULL,
[Address1] [nvarchar](255) NULL,
[City] [nvarchar](255) NULL,
[State] [nvarchar](255) NULL,
[Age] [numeric](18, 0) NULL,
[FileName] [nvarchar](255) NULL,
[LoadDatetime] [datetime] NULL
) ON [PRIMARY]
GO