Error when using RenderViewToStringAsync method

[pateljeel]

I am getting an error when using the IJSReportMVCService.RenderViewToStringAsync() method. My cshtml file is located directly under the Views Folder in my application.
Here is the stacktrace:

/Views/Report/Report.cshtml
/Views/Shared/Report.cshtml
/Pages/Shared/Report.cshtml
   at Microsoft.AspNetCore.Mvc.ViewEngines.ViewEngineResult.EnsureSuccessful(IEnumerable`1 originalLocations)
   at Microsoft.AspNetCore.Mvc.ViewFeatures.ViewResultExecutor.ExecuteAsync(ActionContext context, ViewResult result)
   at Microsoft.AspNetCore.Mvc.ViewResult.ExecuteResultAsync(ActionContext context)
   at Microsoft.AspNetCore.Mvc.Internal.ResourceInvoker.InvokeResultAsync(IActionResult result)
   at Microsoft.AspNetCore.Mvc.Internal.ResourceInvoker.InvokeNextResultFilterAsync[TFilter,TFilterAsync]()
   at Microsoft.AspNetCore.Mvc.Internal.ResourceInvoker.Rethrow(ResultExecutedContext context)
   at Microsoft.AspNetCore.Mvc.Internal.ResourceInvoker.ResultNext[TFilter,TFilterAsync](State& next, Scope& scope, Object& state, Boolean& isCompleted)
   at Microsoft.AspNetCore.Mvc.Internal.ResourceInvoker.InvokeResultFilters()
   at Microsoft.AspNetCore.Mvc.Internal.ResourceInvoker.InvokeNextResourceFilter()
   at Microsoft.AspNetCore.Mvc.Internal.MiddlewareFilterBuilder.<>c.<<BuildPipeline>b__8_0>d.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at jsreport.AspNetCore.JsReportMiddleware.Invoke(HttpContext context)```

[jan_blaha]

Please share somewhere a sample project replicating the problem so we can take a look.
Or you can try to debug this.