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I'm in the process of performing an upgrade of Sitecore 8.1 update 3 to Sitecore 9.0.1.

I have updated all the Sitecore nuget package references from 8.1 to their counterparts in 9.

When I run the site I get the following exception:

Could not resolve type name: Sitecore.Data.SqlServer.SqlServerProxyDataProvider, Sitecore.Kernel (method: Sitecore.Configuration.DefaultFactory.CreateFromTypeName(XmlNode configNode, String[] parameters, Boolean assert)).

When I decompile Sitecore.Kernel v8.1 I can see that the type in questions exists.

When I decompile Sitecore.Kernel v9 they type is no longer there.

Does anyone know where it has gone and / or what I should be using instead?

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  • Where are you using SqlServerProxyDataProvider or where is it referenced from? I couldn;t find any reference in config files in OOTB instance of Sitecore 8.
    – Peter Procházka
    Jun 14, 2018 at 11:24
  • I couldn't find SqlServerProxyDataProvider anywhere in the code. I did note however that the sitecore.config had an element of proxyDataProvider whereas a fresh v9 install had dataProvider instead. Changed the config and it got past this issue. Looks like I will have more luck starting from a fresh v9 config and going from there. Thanks for your help.
    – schnitty
    Jun 15, 2018 at 0:20
  • You can also accept my answer @schnitty if it helped :)
    – Peter Procházka
    Jul 10, 2018 at 18:42

2 Answers 2

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Seems that the whole Sitecore.Data.Proxies namespace has been significantly reduced in Sitecore 9.

There is also no ProxyDisabler any more as it has been retired in this version -> https://briancaos.wordpress.com/2018/01/22/in-sitecore-9-the-proxydisabler-have-been-retired-completely/

I believe there is no replacement for Sitecore.Data.SqlServer.SqlServerProxyDataProvider or any other ProxyProviders that were there before as Proxy items are no longer supported in Sitecore 9.

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to resolve issue do action as below

From the Sitecore.config comment below settings for keys both below entries came twice, so ensure to comment twice proxiesEnabled proxyDataProvider

comment below tag proxyDataProviders

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  • This doesn't answer the question
    – Mark Cassidy
    Jan 7, 2020 at 10:28

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