Warnings in migration tool related to object store

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The migration tool (1.1.0.38) used on an oracle database gives me the following warning lines:

[2009-10-07 12:39:49][Warning] Do not know how to handle schema 'ContentPackage'. All items of this schema will be removed.
[2009-10-07 12:39:50][Warning] Do not know how to handle schema 'TreeDiffInfo'. All items of this schema will be removed.
[2009-10-07 12:39:50][Warning] Do not know how to handle schema 'DefaultUser'. All items of this schema will be removed.
[2009-10-07 12:39:50][Warning] Do not know how to handle schema 'WsrpPortalInfo'. All items of this schema will be removed.

followed by a number of lines looking like

[2009-10-07 12:39:50][Warning] Could not find a field named 'ᐁ' of type EPiServer.Core.PageDatain target instance of type TreeNode.
[2009-10-07 12:39:50][Warning] Could not find a field named '_enableGlobalizationSupport' of type System.Booleanin target instance of type MirroringInfo.

and

[2009-10-07 12:39:50][Warning] Could not find a field named '_sortIndex' of type System.Int32in target instance of type MirroringInfo.
[2009-10-07 12:39:50][Warning] Could not find a field named 'ᐁ' of type System.Collections.Queuein target instance of type DestinationInfo.

Is this something to worry about and what could it mean?

#33334
Oct 08, 2009 9:40