Error creating report instance

[Lyca]

I downloaded source code for Telerik RESTful Reporting Service and Consuming Telerik Rest Service update my Nuget Packages to enable CORS and still I have this Error Creating report instance. Do you know what might be the cause of this? Thanks

[Stef]

Hi Lyca,

Please use Fiddler to check the requests during running the application in Browser. Then you can see the actual Response from the server and the reason for the error. You can also use the browser's console to check which request fails.

In order to provide you more accurate suggestions, please share the exception stack trace written in Fiddler.

Regards,
Stef
Telerik

 

 

[विवेक]

Hey i am getting the same error. Here is my stack trace 

{"message":"","exceptionMessage":"Missing or invalid parameter value. Please input valid data for all parameters.","exceptionType":"Telerik.Reporting.Services.Engine.InvalidParameterException","stackTrace":"   at Telerik.Reporting.Services.Engine.Client.CreateReportInstance(String report, Dictionary`2 parameterValues)\r\n   at Telerik.Reporting.Services.Engine.ReportEngine.<>c__DisplayClass8.<CreateReportInstance>b__7(Client client)\r\n   at Telerik.Reporting.Services.Engine.ReportEngine.WithClient[T](String clientID, Func`2 func)\r\n   at Telerik.Reporting.Services.Engine.ReportEngine.CreateReportInstance(String clientID, String report, Dictionary`2 parameterValues)\r\n   at Telerik.Reporting.Services.WebApi.ReportsControllerBase.CreateInstance(String clientID, ClientReportSource reportSource)\r\n   at lambda_method(Closure , Object , Object[] )\r\n   at System.Web.Http.Controllers.ReflectedHttpActionDescriptor.ActionExecutor.<>c__DisplayClass10.<GetExecutor>b__9(Object instance, Object[] methodParameters)\r\n   at System.Web.Http.Controllers.ReflectedHttpActionDescriptor.ActionExecutor.Execute(Object instance, Object[] arguments)\r\n   at System.Web.Http.Controllers.ReflectedHttpActionDescriptor.ExecuteAsync(HttpControllerContext controllerContext, IDictionary`2 arguments, CancellationToken cancellationToken)\r\n--- End of stack trace from previous location where exception was thrown ---\r\n   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)\r\n   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)\r\n   at System.Runtime.CompilerServices.TaskAwaiter`1.GetResult()\r\n   at System.Web.Http.Controllers.ApiControllerActionInvoker.<InvokeActionAsyncCore>d__0.MoveNext()\r\n--- End of stack trace from previous location where exception was thrown ---\r\n   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)\r\n   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)\r\n   at System.Runtime.CompilerServices.TaskAwaiter`1.GetResult()\r\n   at System.Web.Http.Controllers.ActionFilterResult.<ExecuteAsync>d__2.MoveNext()\r\n--- End of stack trace from previous location where exception was thrown ---\r\n   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)\r\n   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)\r\n   at System.Runtime.CompilerServices.TaskAwaiter`1.GetResult()\r\n   at System.Web.Http.Controllers.ExceptionFilterResult.<ExecuteAsync>d__0.MoveNext()"}

[Stef]

Hi,

Please double-check if the Reporting REST service is running and responds on typing its address in browser - How To: Add Telerik Reporting REST Web API to Web Application.
Then check if all report parameters are visible, or have default value or such passed from the viewer.

Parameters' names are case sensitive, and it is important to have a reference to Newtonsoft.Json.dll in the project, where the assembly must not be installed in the machine's GAC. The minimum system requirements are listed in the Reporting REST service System Requirements.

Check also the settings suggested in the HTML5 Report Viewer - Export options are missing forum thread.

Regards,
Stef
Telerik

 

 

[Saad]

Hi,

I am also having a same issue with same stack trace. service is working fine.

my problem is it works fine for some reports and throws above error for other reports

Product Sales.trdx (from telerik reporting sample) - working 

Product Catalog.trdx (from telerik reporting sample) - not working 

I am passing parameters as 

 reportSource: {
                    report: "Product Catalog.trdx",                   
                    parameters: { CultureID: "en" }
                }, 

 is this correct? please help.

[Stef]

Hello Saad,

Please test updating Newtosoft.Json.dll through Nuget packages manager to the latest available version. Verify there are added proper binding redirects in th web.config and test running the application.

Check also if the routes of the Reporting RESTservice do not duplicate with other routes. For the purpose register them first in the Global.asax or customize them - How to change the registered by default Telerik Reporting REST Web API routes.

Regards,
Stef
Telerik