Problem While compiling the application, the reference error message “The type or namespace name 'Accordion' does not exist in the namespace 'Syncfusion.JavaScript.Web' (are you missing an assembly reference?)" appears. The following screenshot displays the error. Figure SEQ Figure \* ARABIC 1: Error message Solution In order to avoid the Accordion does not exist issue, refer to the Syncfusion.EJ.Web assembly in the project. The following assembly information table helps you choose the correct assembly version. Table SEQ Table \* ARABIC 1: DLL Reference .NET Framework Version Assembly Version(12.4.0.24) 4.0 12.4400.0.24 4.5 12.4450.0.24 4.5.1 12.4451.0.24
