I had one of those annoying problems with executing a SSIS package that took up most of the morning today (and a couple of hours yesterday) where you get an error which many people have had, but none of their solutions work. I guess it is such a generic error code it can relate to many different issues hence dozens of different (wrong) suggestions. What confused matters was that although it completed successfully in SSDT, it failed when being validated on our newly created SSISDB Catalog. I didn't know whether it was a problem with the package and/or its parameters or the SSISDB Catalog installation or Environment. If you haven't set up an Integration Services Catalog (a new feature of SQL 2012) yet I definitely think it is worth looking at. I found an excellent guide here that takes you through it all. In our case we had two connection managers, the source was a table in a SQL Server 2012 database and the destination a table in an Access 2010 database. The server with the
Hints and tips on working with Microsoft SQL Server