我新建作业了，什么都建好了。点完成就出现了：
无法将类型为“Microsoft.SqlServer.Management.Smo.SimpleObjectKey”的对象强制转换为类型“Microsoft.SqlServer.Management.Smo.Agent.JobObjectKey”。 (Microsoft.SqlServer.Smo)
------解决方案--------------------
http://forums.microsoft.com/MSDN/ShowPost.aspx?PostID=1390074&SiteID=1
------------
This problem seems to have been resolved by running the SQL Server SP2.
------解决方案--------------------
http://www.microsoft.com/downloads/details.aspx?FamilyID=a7c903fe-35a7-4bb2-8e73-932770099711&DisplayLang=zh-cn