The type ‘Microsoft.Reporting.WebForms.ReportViewer’ exists in both

In this article, we will learn how to solve The base class includes the field ‘ReportViewer1’ but its type is not compatible with the type of control “Microsoft.Reporting.WebForms.ReportViewer” that you may face when adding a new Microsoft.Reporting.WebForms.ReportViewer reference to your ASP.NET or SharePoint solution. The base class includes the field ‘ReportViewer1’ but its type is […]