Problems with SL4 and Reporting

[Luis]

Hello,


I'm new to the forum, so thanks in advance, I hope someone can help me. I have an strange error with Telerik Reporting.

I am using the Telerik Reporting Q1 2012 (ver. 6.0.12.215) and Visual Studio 2010, framework 4.0, and works perfectly in PROD, TEST and in one DEV environment...

MY applications is SL4 and show the reports inside a ReportsViewer.

But now I am trying to setup a new Dev environment and i have an error:

a:InternalServiceFaultError loading extension type with name .A null or zero length string does not represent a valid Type. at System.RuntimeTypeHandle.GetTypeByName(String name, Boolean throwOnError, Boolean ignoreCase, Boolean reflectionOnly, StackCrawlMark& stackMark, Boolean loadTypeFromPartialName) at System.RuntimeType.GetType(String typeName, Boolean throwOnError, Boolean ignoreCase, Boolean reflectionOnly, StackCrawlMark& stackMark) at System.Type.GetType(String typeName, Boolean throwOnError) at Telerik.Reporting.Processing.ExtensionManagerBase.CreateExtensionInfo(String typeName, String extensionName)System.TypeLoadExceptionError loading extension type with name . at Telerik.Reporting.Processing.ExtensionManagerBase.CreateExtensionInfo(String typeName, String extensionName) at Telerik.Reporting.Processing.ExtensionManagerBase.Config(ExtensionInfoCollection extensions, ReportingConfigurationSection section) at Telerik.Reporting.Processing.ExtensionManagerBase..ctor(IEnumerable`1 extensionTypeNames, ReportingConfigurationSection section) at Telerik.Reporting.Processing.ExtensionManager..ctor(IEnumerable`1 extensionTypeNames, ReportingConfigurationSection reportingSection) at Telerik.Reporting.Processing.ExtensionManager.get_Instance() at Telerik.Reporting.Processing.ExtensionManager.ListExtensions(Type extensionType) at Telerik.Reporting.Processing.ReportProcessor.ListRenderingExtensions() at Telerik.Reporting.Service.ReportServiceBase.Telerik.Reporting.Service.IReportService.ListRenderingExtensions() at SyncInvokeListRenderingExtensions(Object , Object[] , Object[] ) at System.ServiceModel.Dispatcher.SyncMethodInvoker.Invoke(Object instance, Object[] inputs, Object[]& outputs) at System.ServiceModel.Dispatcher.DispatchOperationRuntime.InvokeBegin(MessageRpc& rpc) at System.ServiceModel.Dispatcher.ImmutableDispatchRuntime.ProcessMessage5(MessageRpc& rpc) at System.ServiceModel.Dispatcher.ImmutableDispatchRuntime.ProcessMessage41(MessageRpc& rpc) at System.ServiceModel.Dispatcher.ImmutableDispatchRuntime.ProcessMessage4(MessageRpc& rpc) at System.ServiceModel.Dispatcher.ImmutableDispatchRuntime.ProcessMessage31(MessageRpc& rpc) at System.ServiceModel.Dispatcher.ImmutableDispatchRuntime.ProcessMessage3(MessageRpc& rpc) at System.ServiceModel.Dispatcher.ImmutableDispatchRuntime.ProcessMessage2(MessageRpc& rpc) at System.ServiceModel.Dispatcher.ImmutableDispatchRuntime.ProcessMessage11(MessageRpc& rpc) at System.ServiceModel.Dispatcher.ImmutableDispatchRuntime.ProcessMessage1(MessageRpc& rpc) at System.ServiceModel.Dispatcher.MessageRpc.Process(Boolean isOperationContextSet)Telerik.Reporting.Interfaces.ExtensionManagerException

My application needs to work with SSL, and works fine, but in this new Dev environment i have this error... 

I read all articles, and I have reviewed the DLLs, and the web.config settings

Any ideas?

Thanks!

[Steve]

Hello Luis,

Most likely you have not referenced required assemblies. The XLSX/DOCX/PPTX rendering extensions require Telerik.Reporting.OpenXmlRendering.dll and Open XML SDK 2.0 for Microsoft Office (DocumentFormat.OpenXml.dll v.2.0.5022.0 or above). XPS rendering extension requires Telerik.Reporting.XpsRendering assembly. If those are missing, the report engine cannot find the rendering extension and throws an error.

If the problem persists, please open a support ticket and provide us with a runnable project that exhibits the error. You could also attach screenshots of your web.config and references for your application hosting the Silverlight app.

All the best,
Steve
the Telerik team