Could not load file or assembly Microsoft.ReportViewer.WebForms or one of its dependencies

Question

When I goto my site I get this error...

Error   101 Could not load file or assembly 'Microsoft.ReportViewer.WebForms, Version=9.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a' or one of its dependencies. The system cannot find the file specified. C:\mlui\csharp\WebAdmin_solution\WebAdmin\web.config    209

which is this line of code:

<add assembly="Microsoft.ReportViewer.WebForms, Version=9.0.0.0, Culture=neutral, PublicKeyToken=B03F5F7F11D50A3A" />

I am using Visual Studio 2012, do I need to download something and add it to the VS 2012 folder?

Answer 1

If you're actually using the Reporting Services, try to install the Reporting Services redistributable on the server you deploy your web site to or include the required assemblies with your web application.