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

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.