The error happens when I try to add a job to a sql server.
The whole error message : Description: "Login failed for user 'everest_user'.". End Error Error: 2013-12-09 11:01:41.14 Code: 0xC020801C Source: EvalUserSessionDetail OLE DB Destination [94] Description: SSIS Error Code DTS_E_CANNOTACQUIRECONNECTIONFROMCONNECTIONMANAGER. The AcquireConnection method call to the connection manager "vmsdsqlpg01<c/>3180" failed with error code 0xC0202009. There may be error messages posted before this with more information on why the AcquireConnection method call failed.
DB Version : SQL Server 2008 R2
SSIS Version : From Visual Studio 2008
Solution : 比對了SQL Server Job上的所有設定, 都跟本來可以RUN的程式沒有兩樣, 所以就參考了http://stackoverflow.com/questions/748136/acquireconnection-method-call-to-the-connection-manager-excel-connection-manage
在Visual Studio上把Delay Validation改成True就可以了
PS. 本來的設定上, SSIS的Delay Validation是False, 但還是可以run, 一整個很奇怪,不過還好解決了