stsadm export/import errors
Hi, We are attempting to split a very large (~1tb) site collection in to more manageable chunks using stsadm export and import to provision the sites in new site collections. In terms of configuration/process: Export to disk no file compression, all versions and including security Create site collection following the form [Existing Name]_New using the same site template as the source site Activate the same features on the destination site as the source site Delete the source site Remove the _new from the destination site name Import again no file compression, all versions & security. On a number of sites this is working fine, if a little slow, but on several we have some errors popping out. On export we get a FatalError: An item with the same key has already been added. at System.ThrowHelper.ThrowArgumentException(ExceptionResource resource) at System.Collections.Generic.Dictionary`2.Insert(TKey key, TValue value, Boolean add) at System.Collections.Generic.Dictionary`2.Add(TKey key, TValue value) at Microsoft.SharePoint.Deployment.MetaInfoHandler which occurs while attempting to export a file, a few dozen files from the same folder export without error. On a different site on import we are getting a FatalError: Object reference not set to an instance of an object. at Microsoft.SharePoint.Deployment.FolderSerializer.SetObjectData when the import process is trying to import a folder. I would appreciate any suggestions anyone can give on possible ways to resolve these issues. Many thanks.
June 23rd, 2010 2:37pm

Wild guess, but Lookup columns being wrecked by the import / exports? (afaik, guids get regenerated by import)
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June 23rd, 2010 3:31pm

Wild guess, but Lookup columns being wrecked by the import / exports? (afaik, guids get regenerated by import) It does wreck the lookups but that causes a handled warning rather than an exception. Plus about 50-60% of the sites export without error, its just some troublesome ones. Any other ideas? This is really kicking my ____.
June 24th, 2010 11:50am

Try stsadm backup restore. I am getting a similar error though with workflows but seems to be because we restored twice. Not sure still testing. If anyone can confirm please let me know. This is 2010.
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July 15th, 2010 8:55pm

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