创建Job出现异常

创建Job出现错误
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)

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http://forums.microsoft.com/MSDN/ShowPost.aspx?PostID=1390074&SiteID=1
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This problem seems to have been resolved by running the SQL Server SP2.

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http://www.microsoft.com/downloads/details.aspx?FamilyID=a7c903fe-35a7-4bb2-8e73-932770099711&DisplayLang=zh-cn