The primary reference "GrapeCity.ActiveReports.Viewer.Win, Version=13.2.18250.0, Culture=neutral, PublicKeyToken=cc4967777c49a3ff, processorArchitecture=MSIL" could not be resolved because it has an indirect dependency on the assembly "GrapeCity.ActiveReports.Export.Rdf, Version=13.2.18250.0, Culture=neutral, PublicKeyToken=********" which was built against the ".NETFramework,Version=v4.6.2" framework. This is a higher version than the currently targeted framework ".NETFramework,Version=v4.6.1".
Right-click the project and go to Properties
In the Application tab, goto Target Framework and select version 4.6.2
If 4.6.2 or higher frameworks are not installed, select install other frameworks…
Please refer to the system requirements to see what else is supported: https://help.grapecity.com/activereports/webhelp/AR13/webframe.html#Requirements.html