errors while migrationg from g workspace to m365

Question

hello ,

i am using a tool to migrate accounts from google workspace to M365 , while migrating onedrive foldes i'am getting this errors on many folders :

An item with the same key has already been added.

CallStack --

at System.ThrowHelper.ThrowArgumentException(ExceptionResource resource)

at System.Collections.Generic.Dictionary`2.Insert(TKey key, TValue value, Boolean add) at Microsoft.SharePoint.Deployment.FileSerializer.SetObjectData(Object obj, SerializationInfo info, StreamingContext context, ISurrogateSelector selector)

at Microsoft.SharePoint.Deployment.XmlFormatter.CallSetObjectData(Object obj, SerializationInfo objectData, ISerializationSurrogate surrogate, ISurrogateSelector selector) at Microsoft.SharePoint.Deployment.XmlFormatter.ParseObject(Type objectType, Boolean isChildObject)

at Microsoft.SharePoint.Deployment.XmlFormatter.DeserializeObject(Type objectType, Boolean isChildObject, DeploymentObject envelope)

at Microsoft.SharePoint.Deployment.XmlFormatter.Deserialize(Stream serializationStream)

at Microsoft.SharePoint.Deployment.ObjectSerializer.Deserialize(Stream serializationStream)

at Microsoft.SharePoint.De...

any ideas please ?

thanks

Answer 1

Hi Saraelmsaddaq,

Thank you for posting your query in our community.

Per your description, you encountered problem when migrating files from Google to OneDrive. May I confirm that whether you are using Migration Manager (Overview: Migrate Google Workspace to Microsoft 365 with Migration Manager - Migrate to Microsoft 365 | Microsoft Docs)?

If yes, since this forum only focus on Microsoft Office 365 products and SharePoint Online/OneDrive built-in features, you can post your problem in office-onedrive-client-itpro - Microsoft Q&A, the members and engineers in this community are more experienced in this area.

Thanks for your understanding.

Best regards,

Jazlyn