SharePoint Import file Error RRS feed

  • Question

  • Hi,

    We are getting error while importing the files from SharePoint 2007 one server to SharePoint 2007 Other Server.

    Have anybody faced this kind of error while importing of the files. The error is as below-

    FatalError: There can only be one instance of this list type in a web.An instance already exists.

       at Microsoft.SharePoint.Library.SPRequest.CreateListOnImport(String bstrUrl,

    Guid& pguidListId, String bstrTitle, String bstrDescription, Int32 lTemplateID,

    String bstrFeatureId, Guid guidRootFolderId, Int64 llFlags, Int32 iVersion, Int3

    2 iAuthor, String bstrFields, String bstrContentTypes, String bstrImageUrl, Stri

    ng bstrEventSinkAssembly, String bstrEventSinkClass, String bstrEventSinkData, G

    uid guidDocTemplateId, String bstrViews, String bstrForms, Boolean bCompressedSc

    hema, DateTime dtTimeCreated)

       at Microsoft.SharePoint.Deployment.ListSerializer.CreateList(SPWeb parentWeb,

     Dictionary`2 listMetaData, Boolean usingPublicSchema)

       at Microsoft.SharePoint.Deployment.ListSerializer.SetObjectData(Object obj, S

    erializationInfo info, StreamingContext context, ISurrogateSelector selector)

       at Microsoft.SharePoint.Deployment.XmlFormatter.ParseObject(Type objectType,

    Boolean isChildObject)

       at Microsoft.SharePoint.Deployment.XmlFormatter.DeserializeObject(Type object

    Type, Boolean isChildObject, DeploymentObject envelope)

       at Microsoft.SharePoint.Deployment.XmlFormatter.Deserialize(Stream serializat


       at Microsoft.SharePoint.Deployment.ObjectSerializer.Deserialize(Stream serial


       at Microsoft.SharePoint.Deployment.ImportObjectManager.ProcessObject(XmlReade

    r xmlReader)

       at Microsoft.SharePoint.Deployment.SPImport.DeserializeObjects()

       at Microsoft.SharePoint.Deployment.SPImport.Run()

    Progress: Import Completed.

    Finish Time: 7/30/2012 8:07:30 PM.

    Completed with 164 warnings.

    Completed with 63 errors. 

    Log file generated:


    There can only be one instance of this list type in a web. 

    An instance already exists.

    Any help will be highly appreciated. Thanks in advance



    Thanks & Regards, Sudheer

    Wednesday, September 5, 2012 10:51 AM

All replies

  • Means exactly what it says; content already exists that you're trying to import.  Each list / library within SharePoint has something called a GUID, a unique identifier that's attached purely to that list. 

    Have you activated publishing, or do you have any custom lists created?  These are the common offenders.

    Steven Andrews | SharePoint Professional | http://www.twitter.com/backpackerd00d | https://baron72.wordpress.com/

    Wednesday, September 5, 2012 11:43 AM