Error When trying to access listdata.svc: Could not load type ‘System.Data.Services.Providers.IDataServiceUpdateProvider’ from assembly ‘System.Data.Services, Version=3.5.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089’.

When trying to access: https://sharepoint.com/_vti_bin/listdata.svc , Received this Error message:

Error: 

Could not load type ‘System.Data.Services.Providers.IDataServiceUpdateProvider’ from assembly ‘System.Data.Services, Version=3.5.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089’.

Error When trying to access listdata.svc

Fix:

Install the ADO.NET Data Services Update for .NET Framework 3.5 SP1 – KB976127
https://support.microsoft.com/en-us/topic/description-of-the-ado-net-data-services-update-for-net-framework-3-5-sp1-for-windows-server-2003-windows-xp-windows-vista-and-windows-server-2008-may-7-2010-e525c2b3-249c-7d66-3cb2-c029c786c745

ADO.NET Data Services Update for .NET Framework 3.5 SP1 - KB976127

Salaudeen Rajack

Salaudeen Rajack is a SharePoint Architect with Two decades of SharePoint Experience. He loves sharing his knowledge and experiences with the SharePoint community, through his real-world articles!

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