The type 'Microsoft.Reporting.WebForms.ReportViewer' exists in both

Question

I have a ASP.NET application which was referring Microsoft.ReportViewer.WebForms of version 9.0.0.0, I changed to refer to Microsoft.ReportViewer.WebForms of version 11.0.0.

Answer 1

I tried adding dependentAssembly in web.config but that did not help.

However it did not help as PublicKeyToken has changed in 11.0.0.0 dll.

Finally I was able to resolve the issue by adding qualifyAssembly node in web.config