How to fix the The type Microsoft.SharePoint.Portal.Analytics.UI.ReportViewerMessages does not implement IReportViewerMessages or could not be found error

The type Microsoft.SharePoint.Portal.Analytics.UI.ReportViewerMessages, Microsoft.SharePoint.Portal, Version=12.0.0.0, Culture=neutral, PublicKeyToken=71e9bce111e9429c does not implement IReportViewerMessages or could not be found

This nasty error message appeared when I published my Reporting Services local report to a custom Web Part.

I solved this be comment out the ReportViewerMessages line in appSettings section in the web.config

So far, I haven’t seen any issues by commenting out this entry.

boro.djuka says:

March 15, 2012 at 09:48

I made the switch from SharePoint Integrated to Native mode. Then i start having problem you described.

After deleting

reports are working correctly.

Thank you.

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Vijay Bhasker Reddy CH. says:

August 23, 2012 at 10:39

It worked for me too – thanks a lot.

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Yahya Ammouri says:

November 4, 2013 at 09:24

it is worked for me.

thank you

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Ram says:

January 23, 2014 at 11:37

It is working after remove the tag from web.config file on the root directory. Thanks.

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