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hi when i want to create a report with stimulsoft, that give me this erro:

first my code:
public ActionResult CreateReport()

        StiReport report = new StiReport();
        string path = Server.MapPath("~/App_Data/Reports/Report1.mrt");
        return StiMvcViewer.GetReportSnapshotResult(HttpContext, report);


and error is in line 42:
Server Error in '/' Application.
Value cannot be null.
Parameter name: value
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details: System.ArgumentNullException: Value cannot be null.
Parameter name: value

Source Error:

Line 40:             string path = Server.MapPath("~/App_Data/Reports/Report1.mrt");
Line 41:             report.Load(path);
Line 42:             return StiMvcViewer.GetReportSnapshotResult(HttpContext, report);
Line 43: 
Line 44:         }

Source File: d:\ASP MVC4 Tamrin\WorkWithJavaScript\WorkWithJavaScript\Controllers\HomeController.cs    Line: 42 
Updated 14-May-14 20:06pm

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