Problem SSIS Package Scheduling

While scheduling the SSIS package some of you already might have seen the following problem.

Unable to cast object of type 'Microsoft.SqlServer.Management.Smo.SimpleObjectKey' to type 'Microsoft.SqlServer.Management.Smo.Agent.JobObjectKey'. (Microsoft.SqlServer.Smo)

The reason for this problem is that you the SP2 patch is not applied properly. Why I said properly here is because that the SQL Server installed first and then installed SP2. Later you might have decided to install SSIS later in the game. SP2 is missing on the SSIS. This can happen any changes that you make to .Net Framework 2.0 (either uninstall or do some changes to it) to SQL server adding or removing features. So, Patch it up when you see the above problem or some thing like

Unable to cast object of type 'X' to type 'Y'.