Report viewer control in SharePoint integrated mode environment. - Critical

Hi All,

I am using a report viewer control in custom share point page and the environment running as SSRS SharePoint integrated mode. when I run the report page got the below error : "

The type 'Microsoft.SharePoint.Portal.Analytics.UI.ReportViewerMessages, Microsoft.SharePoint.Portal, Version=14.0.0.0, Culture=neutral, PublicKeyToken=71e9bce111e9429c' could not be found."

After lot of search has fixed the issue by removing the below entry in webconfig file of my local environment.

" <add key="ReportViewerMessages" value="Microsoft.SharePoint.Portal.Analytics.UI.ReportViewerMessages, Microsoft.SharePoint.Portal, Version=14.0.0.0, Culture=neutral, PublicKeyToken=71e9bce111e9429c" />"

But the problem came up when we move this application to Production, since Prod is shared environment the SharePoint admins are not allowing to touch anything webconfig file. so our team totally struck in releasing the application. we tried a a lot but there is no workaround. Can any one help us in resolving this issue ?. 

Thanks in advance.