ERROR: CEF rendering exception. GRPC rendering request failed

Andre_Sostizzo — Mon, 24 Aug 2020 12:48:17 GMT

NPrinting publish task hangs and log files contain errors when attempting to generate reports, such as the one below:

Engine.Navigator.QlikSense.SDK 18.19.6.0 Engine.Navigator.QlikSense.SDK.Extensions.SdkExtensionMethods 20180731T094614.867+01:00 DEBUG BI-QLIKSENSE1 0 0 0 0 0 0 0 0 CEF rendering exception. GRPC rendering request failed, error: One or more errors occurred..?

Engine.Navigator.QlikSense.SDK 18.19.6.0 Engine.Navigator.QlikSense.SDK.Resolvers.Contents.BaseBaseContentRequestResolver`1[[Qlik.Reporting.Engine.Messages.Requests.ImageNodeRequest, Qlik.Reporting.Engine.Messages, Version=18.19.6.0, Culture=neutral, PublicKeyToken=0f12475411058ae5]] 20180731T094614.867+01:00 DEBUG BI-QLIKSENSE1 0 0 0 0 0 0 0 0 Object ZXKjQ of Sense app eb195328-d51f-4035-8e8a-f78ab4534642 failed to render. ERROR: Qlik.Reporting.Engine.Messages.Exceptions.CefRenderingException: CEF rendering exception. GRPC rendering request failed, error: One or more errors occurred..??? at Engine.Navigator.QlikSense.SDK.Rendering.MashupGrpcServer.KeepGrpcAlive[T](Func`1 code)?? at Engine.Navigator.QlikSense.SDK.Rendering.MashupGrpcServer.Render(Guid navRequestId, String appId, String identity, String typeId, String objId, Int32 width, Int32 height, Int32 dpi, ImageType imageType, Int32 timeout, Int32& queueTime, Int32& renderTime)?? at Engine.Navigator.QlikSense.SDK.Extensions.SdkExtensionMethods.ExportToImage(IGenericObject sheetObject, SenseApp app, Guid requestId, Dictionary`2 propertyValues, Int32 width, Int32 height, Int32 dpi, Double zoom, KeepAspectRatioStrategy keepAspectRatioStrategy, FallbackStrategy fallbackStrategy)?? at Engine.Navigator.QlikSense.SDK.Resolvers.Contents.SheetObjectImageNodeRequestResolver.Resolve(SenseApp doc, ImageNodeRequest request, GenericObject visualizationBase)?? at Engine.Navigator.QlikSense.SDK.Resolvers.Contents.BaseContentRequestResolver`2.Resolve(SenseApp doc, TRequest request, IQixClassBase IGenericObject)?? at Engine.Navigator.QlikSense.SDK.Resolvers.Contents.BaseBaseContentRequestResolver`1.Resolve(SenseApp doc, IContentRequest request, IQixClassBase senseObject)

Engine.Navigator.QlikSense.SDK 18.19.6.0 Engine.Navigator.QlikSense.SDK.SenseNavigator 20180731T094614.867+01:00 WARN BI-QLIKSENSE1 0 0 0 0 0 0 0 0 Content request 093e6072-e93d-4bb1-98cc-4f3bae1b0623: resolution ended unsuccessfully with exception System.Exception: Object ZXKjQ of Sense app eb195328-d51f-4035-8e8a-f78ab4534642 failed to render. ERROR: CEF rendering exception. GRPC rendering request failed, error: One or more errors occurred..

Environment:

Qlik NPrinting June 2018
Qlik NPrinting April 2019
Qlik NPrinting September 2019

Cause:

This error may have occurred because of some orphan processes named reporting_web_renderer. This may have resulted from an unexpected engine crash.

Resolution:

A possible workaround could be to kill the engine process and then kill any subprocess called reporting_web_renderer in task manager. Alternatively, restart the server where the NPrinting Engine service is installed.

article ERROR: CEF rendering exception. GRPC rendering request failed in Official Support Articles

ERROR: CEF rendering exception. GRPC rendering request failed

Cause:

Resolution: