I have installed and configured Connector for Microsoft Dynamics 2.1.0. I am getting below error when click Run Troubleshooter on xconnect Client Endpoint.

Could not load type 'Sitecore.Xdb.Common.Web.IHttpClientHandlerModifier' from assembly 'Sitecore.Xdb.Common.Web, Version=, Culture=neutral, PublicKeyToken=null'.

I have Sitecore.Xdb.Common.Web.dll in bin folder. Can someone please suggest possible cause.

FYI: Its clean instance of Sitecore 9.02

  • It could be the wrong version of Sitecore.Xdb.Common.Web in your bin folder. Mar 13, 2019 at 6:31

1 Answer 1


Sitecore.Xdb.Common.Web.IHttpClientHandlerModifier doesn`t exist in Sitecore 9.0.2 (only in Sitecore 9.1).

As I know Microsoft Dynamics 2.1.0 requires Sitecore 9.1 version. You can check sitecore modules compability here https://kb.sitecore.net/articles/541788.

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