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Invalid value of report parameter error in HTML5 Report Viewer


Product Progress® Telerik® Reporting


HTML5 Report Viewer fails to load a report and displays the error saying that the value of report parameter is invalid.

Error Message

Internal Server Error

An error has occurred while processing the report. Processing canceled. Check the InnerException for more information.

Invalid value of report parameter 'X'

Cause\Possible Cause(s)

The values of report parameters are submitted from the client(viewer) to the server in JSON format where the formatting is done by the Newtonsoft.Json package. It is possible that using the outdated Newtonsoft.Json package might result in the incorrect transfer of the parameter values.


Update Newtonsoft.Json package using NuGet package manager in Visual Studio.

See Also

Requirements for using Telerik Reporting REST WebAPI service

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