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If you became a customer of the Syncfusion Reporting Platform or the Report Viewer, Report Designer, or Report Writer components before October 2019 and have questions related to those products, you can request support through our forum system. However, please note that this support system is only for existing customers who are still using the Syncfusion Reporting Platform or its components and not for new customers looking for reporting products from Syncfusion.

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The type or namespace name 'JavaScript' does not exist in the namespace 'Syncfusion' (are you missing an assembly reference?)

Hi,
I am trying to add
Syncfusion.JavaScript.Web.ReportViewer
in my designer.cs file and it is throwing the following
The type or namespace name 'JavaScript' does not exist in the namespace 'Syncfusion' (are you missing an assembly reference?) error
and i see in the .aspx file

it is showing element report viewer is not a known element.this can occur if there is a compilation error or web.config id missing.
Can u please help me on this.

1 Reply

VS Vinoth Srinivasan Syncfusion Team July 24, 2019 04:28 PM UTC

Hi Sruthi, 

Thanks for your interest in our Syncfusion product. 

We suspect the NuGet packages are not referred properly at your end. Please find the below help documentation for how to create the Report Viewer control in ASP.NET WebForms application. 

We have prepared the simple sample for your reference and it can be downloaded from below location. 

Regards, 
Vinoth S. 


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