"System.Collections.Generic.KeyNotFoundException: The given key was not present in the dictionary" on Mailbox / Calendar migration (4327773)

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Titel

"System.Collections.Generic.KeyNotFoundException: The given key was not present in the dictionary" on Mailbox / Calendar migration
Beschreibung

During exchange mailbox or calendar migration an error similiar to below may be encountered:
System.Collections.Generic.KeyNotFoundException: The given key was not present in the dictionary.
at System.Collections.Generic.Dictionary`2.get_Item(TKey key)
at Dell.MigrationManagerForExchange.General.Ews.Autodiscover.GetEwsUrl(String emailAddress, NetworkCredential creds, Uri& autodiscoverUrl, Boolean enableScpLookup)
at Dell.MigrationManagerForExchange.General.Ews.EwsSessionCreator.DiscoverUrl()
at Dell.MigrationManagerForExchange.General.Ews.EwsSessionCreator.get_Url()
at Dell.MigrationManagerForExchange.General.Ews.EwsSessionCreator.GetExchangeService()
at Quest.MigrationManager.Exchange.MigrationConnectors.EwsSyncConnector.get_Exs()
at Quest.MigrationManager.Exchange.MigrationConnectors.EwsSyncConnector.ConnectInternal()
at Quest.MigrationManager.Exchange.MigrationConnectors.EwsSyncConnector.ReconnectOverAutodiscover()
at Quest.MigrationManager.Exchange.MigrationConnectors.EwsSyncConnector.Connect()
at Quest.MigrationManager.Exchange.Agent.Jobs.DisPlusO365JobBase.ConnectOverEws()
at Quest.MigrationManager.Exchange.Agent.Jobs.DisBaseJob.ConnectionOverEws()
at Quest.MigrationManager.Exchange.Agent.Jobs.DisBaseJob.PerformSync()
at Quest.MigrationManager.Exchange.Agent.Jobs.DisBaseJob.RunJob()
Ursache

Assuming the issue is not related to https://support.software.dell.com/migration-manager-for-exchange/kb/136770 where the O365 account type can also generate this error this error has been encountered on mailboxes where X500 addresses of different / incorrect AD users may be present on those accounts returning the 'The given key was not present in the dictionary' error.
Lösung

Assuming the issue is not related to https://support.quest.com/migration-manager-for-exchange/kb/136770 where the O365 account type can also generate this error this error has been encountered on mailboxes where X500 addresses of different / incorrect AD users may be present on those accounts returning the 'The given key was not present in the dictionary' error.

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Thema/Themen:: Troubleshooting

Artikelhistorie:: Erstellt am: 8/15/2016
Letzte Aktualisierung am: 5/7/2023

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"System.Collections.Generic.KeyNotFoundException: The given key was not present in the dictionary" on Mailbox / Calendar migration (4327773)

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