Encryption 一旦我更改了保护级别，连接管理器就无法工作

当前使用SSIS 2008，我的包保护级别设置为：EncryptSensitiveWithUserKey

我最近试着把它改成Dontsavesitive 但我的包在进行更改后失败，错误如下：

 SSIS package "ImportModerators.dtsx" starting.
 Information: 0x4004300A at Data Flow Task, SSIS.Pipeline: Validation phase is beginning.
 Error: 0xC020801C at Data Flow Task, Add new Moderators [422]: SSIS Error Code DTS_E_CANNOTACQUIRECONNECTIONFROMCONNECTIONMANAGER.  The AcquireConnection method call to the connection manager "StagingDatabase" failed with error code 0xC0202009.  There may be error messages posted before this with more information on why the AcquireConnection method call failed.
 Error: 0xC0047017 at Data Flow Task, SSIS.Pipeline: component "Add new Moderators" (422) failed validation and returned error code 0xC020801C.
 Error: 0xC004700C at Data Flow Task, SSIS.Pipeline: One or more component failed validation.
 Error: 0xC0024107 at Data Flow Task: There were errors during task validation.
 SSIS package "ImportModerators.dtsx" finished: Success.

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如果我更改了保护级别，并且是我创建了该包，那么该包难道不能运行吗？

如果连接不是windows身份验证，则需要为每个连接设置包配置，以便SSIS可以从中提取凭据。

是连接管理器，StagingDatabase，使用Windows身份验证还是需要用户名和密码？