Block thumbnails are not being generated

Artur · March 17, 2021, 5:22pm

Hi.

We have some issues generating block thumbnails.
The cache for the blocks are missing in Files and it does not seem to create any thumbnails.
I do find some errors in event log that I think are related to this. Any ideas what could cause it?

View event "Litium.IWebLog"  
Object reference not set to an instance of an object.

System.NullReferenceException: Object reference not set to an instance of an object.
   at Litium.Web.Administration.NodeServices.Bootstrapper.<>c.<Configure>b__0_1(NodeServicesOptions options)
   at Microsoft.Extensions.DependencyInjection.NodeServicesServiceCollectionExtensions.<>c__DisplayClass1_0.<AddAdministrationNodeServices>b__0(IServiceProvider serviceProvider)
   at Castle.MicroKernel.ComponentActivator.FactoryMethodActivator`1.Instantiate(CreationContext context)
   at Castle.MicroKernel.ComponentActivator.DefaultComponentActivator.InternalCreate(CreationContext context)
   at Castle.MicroKernel.ComponentActivator.AbstractComponentActivator.Create(CreationContext context, Burden burden)
   at Castle.MicroKernel.Lifestyle.AbstractLifestyleManager.CreateInstance(CreationContext context, Boolean trackedExternally)
   at Castle.MicroKernel.Lifestyle.SingletonLifestyleManager.Resolve(CreationContext context, IReleasePolicy releasePolicy)
   at Castle.MicroKernel.Handlers.DefaultHandler.ResolveCore(CreationContext context, Boolean requiresDecommission, Boolean instanceRequired, Burden& burden)
   at Castle.MicroKernel.Handlers.DefaultHandler.Resolve(CreationContext context, Boolean instanceRequired)
   at Castle.MicroKernel.Resolvers.DefaultDependencyResolver.Resolve(CreationContext context, ISubDependencyResolver contextHandlerResolver, ComponentModel model, DependencyModel dependency)
   at Castle.MicroKernel.ComponentActivator.DefaultComponentActivator.CreateConstructorArguments(ConstructorCandidate constructor, CreationContext context)
   at Castle.MicroKernel.ComponentActivator.DefaultComponentActivator.Instantiate(CreationContext context)
   at Castle.MicroKernel.ComponentActivator.DefaultComponentActivator.InternalCreate(CreationContext context)
   at Castle.MicroKernel.ComponentActivator.AbstractComponentActivator.Create(CreationContext context, Burden burden)
   at Castle.MicroKernel.Lifestyle.AbstractLifestyleManager.CreateInstance(CreationContext context, Boolean trackedExternally)
   at Castle.MicroKernel.Lifestyle.SingletonLifestyleManager.Resolve(CreationContext context, IReleasePolicy releasePolicy)
   at Castle.MicroKernel.Handlers.DefaultHandler.ResolveCore(CreationContext context, Boolean requiresDecommission, Boolean instanceRequired, Burden& burden)
   at Castle.MicroKernel.Handlers.DefaultHandler.Resolve(CreationContext context, Boolean instanceRequired)
   at Castle.MicroKernel.Resolvers.DefaultDependencyResolver.Resolve(CreationContext context, ISubDependencyResolver contextHandlerResolver, ComponentModel model, DependencyModel dependency)
   at Castle.MicroKernel.ComponentActivator.DefaultComponentActivator.CreateConstructorArguments(ConstructorCandidate constructor, CreationContext context)
   at Castle.MicroKernel.ComponentActivator.DefaultComponentActivator.Instantiate(CreationContext context)
   at Castle.MicroKernel.ComponentActivator.DefaultComponentActivator.InternalCreate(CreationContext context)
   at Castle.MicroKernel.ComponentActivator.AbstractComponentActivator.Create(CreationContext context, Burden burden)
   at Castle.MicroKernel.Lifestyle.AbstractLifestyleManager.CreateInstance(CreationContext context, Boolean trackedExternally)
   at Castle.MicroKernel.Lifestyle.AbstractLifestyleManager.Resolve(CreationContext context, IReleasePolicy releasePolicy)
   at Castle.MicroKernel.Handlers.DefaultHandler.ResolveCore(CreationContext context, Boolean requiresDecommission, Boolean instanceRequired, Burden& burden)
   at Castle.MicroKernel.Handlers.DefaultHandler.Resolve(CreationContext context, Boolean instanceRequired)
   at Castle.MicroKernel.DefaultKernel.ResolveComponent(IHandler handler, Type service, IDictionary additionalArguments, IReleasePolicy policy, Boolean ignoreParentContext)
   at Castle.MicroKernel.DefaultKernel.ResolveComponent(IHandler handler, Type service, IDictionary additionalArguments, IReleasePolicy policy)
   at Castle.MicroKernel.DefaultKernel.Resolve(String key, Type service, IDictionary arguments)
   at Castle.Windsor.WindsorContainer.Resolve[T](String key)
   at Litium.Infrastructure.InversionOfControl.IoCWindsorContainer.ResolveInternal[T](String key, Boolean throwException, Boolean isPluginName)
   at Litium.Infrastructure.InversionOfControl.IoCWindsorContainer.ResolvePlugin[T](String pluginName, Boolean throwExceptionIfNoComponent)
   at Litium.Web.WebApi.HttpControllerActivator.Create(HttpRequestMessage request, HttpControllerDescriptor controllerDescriptor, Type controllerType)
   at System.Web.Http.Tracing.Tracers.HttpControllerDescriptorTracer.<>c__DisplayClass11_0.<CreateController>b__0()
   at System.Web.Http.Tracing.ITraceWriterExtensions.TraceBeginEnd(ITraceWriter traceWriter, HttpRequestMessage request, String category, TraceLevel level, String operatorName, String operationName, Action`1 beginTrace, Action execute, Action`1 endTrace, Action`1 errorTrace)
   at System.Web.Http.Tracing.Tracers.HttpControllerDescriptorTracer.CreateController(HttpRequestMessage request)
   at System.Web.Http.Dispatcher.HttpControllerDispatcher.<SendAsync>d__15.MoveNext()

View event "Litium.Infrastructure.InversionOfControl.IoCWindsorContainer"  
Object reference not set to an instance of an object.

System.NullReferenceException: Object reference not set to an instance of an object.
   at Litium.Web.Administration.NodeServices.Bootstrapper.<>c.<Configure>b__0_1(NodeServicesOptions options)
   at Microsoft.Extensions.DependencyInjection.NodeServicesServiceCollectionExtensions.<>c__DisplayClass1_0.<AddAdministrationNodeServices>b__0(IServiceProvider serviceProvider)
   at Castle.MicroKernel.ComponentActivator.FactoryMethodActivator`1.Instantiate(CreationContext context)
   at Castle.MicroKernel.ComponentActivator.DefaultComponentActivator.InternalCreate(CreationContext context)
   at Castle.MicroKernel.ComponentActivator.AbstractComponentActivator.Create(CreationContext context, Burden burden)
   at Castle.MicroKernel.Lifestyle.AbstractLifestyleManager.CreateInstance(CreationContext context, Boolean trackedExternally)
   at Castle.MicroKernel.Lifestyle.SingletonLifestyleManager.Resolve(CreationContext context, IReleasePolicy releasePolicy)
   at Castle.MicroKernel.Handlers.DefaultHandler.ResolveCore(CreationContext context, Boolean requiresDecommission, Boolean instanceRequired, Burden& burden)
   at Castle.MicroKernel.Handlers.DefaultHandler.Resolve(CreationContext context, Boolean instanceRequired)
   at Castle.MicroKernel.Resolvers.DefaultDependencyResolver.Resolve(CreationContext context, ISubDependencyResolver contextHandlerResolver, ComponentModel model, DependencyModel dependency)
   at Castle.MicroKernel.ComponentActivator.DefaultComponentActivator.CreateConstructorArguments(ConstructorCandidate constructor, CreationContext context)
   at Castle.MicroKernel.ComponentActivator.DefaultComponentActivator.Instantiate(CreationContext context)
   at Castle.MicroKernel.ComponentActivator.DefaultComponentActivator.InternalCreate(CreationContext context)
   at Castle.MicroKernel.ComponentActivator.AbstractComponentActivator.Create(CreationContext context, Burden burden)
   at Castle.MicroKernel.Lifestyle.AbstractLifestyleManager.CreateInstance(CreationContext context, Boolean trackedExternally)
   at Castle.MicroKernel.Lifestyle.SingletonLifestyleManager.Resolve(CreationContext context, IReleasePolicy releasePolicy)
   at Castle.MicroKernel.Handlers.DefaultHandler.ResolveCore(CreationContext context, Boolean requiresDecommission, Boolean instanceRequired, Burden& burden)
   at Castle.MicroKernel.Handlers.DefaultHandler.Resolve(CreationContext context, Boolean instanceRequired)
   at Castle.MicroKernel.Resolvers.DefaultDependencyResolver.Resolve(CreationContext context, ISubDependencyResolver contextHandlerResolver, ComponentModel model, DependencyModel dependency)
   at Castle.MicroKernel.ComponentActivator.DefaultComponentActivator.CreateConstructorArguments(ConstructorCandidate constructor, CreationContext context)
   at Castle.MicroKernel.ComponentActivator.DefaultComponentActivator.Instantiate(CreationContext context)
   at Castle.MicroKernel.ComponentActivator.DefaultComponentActivator.InternalCreate(CreationContext context)
   at Castle.MicroKernel.ComponentActivator.AbstractComponentActivator.Create(CreationContext context, Burden burden)
   at Castle.MicroKernel.Lifestyle.AbstractLifestyleManager.CreateInstance(CreationContext context, Boolean trackedExternally)
   at Castle.MicroKernel.Lifestyle.AbstractLifestyleManager.Resolve(CreationContext context, IReleasePolicy releasePolicy)
   at Castle.MicroKernel.Handlers.DefaultHandler.ResolveCore(CreationContext context, Boolean requiresDecommission, Boolean instanceRequired, Burden& burden)
   at Castle.MicroKernel.Handlers.DefaultHandler.Resolve(CreationContext context, Boolean instanceRequired)
   at Castle.MicroKernel.DefaultKernel.ResolveComponent(IHandler handler, Type service, IDictionary additionalArguments, IReleasePolicy policy, Boolean ignoreParentContext)
   at Castle.MicroKernel.DefaultKernel.ResolveComponent(IHandler handler, Type service, IDictionary additionalArguments, IReleasePolicy policy)
   at Castle.MicroKernel.DefaultKernel.Resolve(String key, Type service, IDictionary arguments)
   at Castle.Windsor.WindsorContainer.Resolve[T](String key)
   at Litium.Infrastructure.InversionOfControl.IoCWindsorContainer.ResolveInternal[T](String key, Boolean throwException, Boolean isPluginName)
   at Litium.Infrastructure.InversionOfControl.IoCWindsorContainer.ResolvePlugin[T](String pluginName, Boolean throwExceptionIfNoComponent)
   at Litium.Web.WebApi.HttpControllerActivator.Create(HttpRequestMessage request, HttpControllerDescriptor controllerDescriptor, Type controllerType)
   at System.Web.Http.Tracing.Tracers.HttpControllerDescriptorTracer.<>c__DisplayClass11_0.<CreateController>b__0()
   at System.Web.Http.Tracing.ITraceWriterExtensions.TraceBeginEnd(ITraceWriter traceWriter, HttpRequestMessage request, String category, TraceLevel level, String operatorName, String operationName, Action`1 beginTrace, Action execute, Action`1 endTrace, Action`1 errorTrace)
   at System.Web.Http.Tracing.Tracers.HttpControllerDescriptorTracer.CreateController(HttpRequestMessage request)
   at System.Web.Http.Dispatcher.HttpControllerDispatcher.<SendAsync>d__15.MoveNext()

View event "Litium.Web.Administration.NodeServices.ResourcesSetup"  
Object reference not set to an instance of an object.

System.NullReferenceException: Object reference not set to an instance of an object.
   at Litium.Web.Administration.NodeServices.ResourcesSetup.<Start>d__4.MoveNext()

View event "Litium.Application.Events.EventBrokerImpl"  
Value cannot be null.
Parameter name: source

System.ArgumentNullException: Value cannot be null.
Parameter name: source
   at System.Linq.Enumerable.Select[TSource,TResult](IEnumerable`1 source, Func`2 selector)
   at Litium.Application.Media.OrphanBlobsCleanup.CleanupThumbnails(ServiceBusQueue`1 queue, String authority, Guid systemId, MultiCultureFieldContainer fields)
   at Litium.Application.Media.OrphanBlobsCleanup.<>c__DisplayClass1_0.<.ctor>b__1(BlockDeleted x)
   at Litium.Application.Events.EventBrokerImpl.<>c__DisplayClass11_1`1.<Publish>b__4()
   at Litium.Application.Common.FifoExecution.WorkItem.<>c.<.cctor>b__7_0(Object s)
   at Litium.Application.Common.FifoExecution.WorkItem.Execute()
   at Litium.Application.Common.FifoExecution.ProcessQueuedItems(Object ignored)

Litium version: 7.6.1

ton.nguyen · March 18, 2021, 8:31am

What do you have in web.config, under litium.foundation.nodeservices?

Artur · March 19, 2021, 11:03am

We did not have it in our web.config But when i manually added the configuration section (below) and then added a block the thumbnails popped up.

Will have to look why it was not added but probably an error on our side. Thank you!

<section name="nodeServices" type="Litium.Foundation.Configuration.NodeServicesConfigSectionHandler, Litium.Foundation" />

<nodeServices generateThumbnailsAtServerSide="true" invocationTimeoutMilliseconds="60000" />

ton.nguyen · March 19, 2021, 2:52pm

You are welcome! A page which explains what it is in case you are curious NodeServices

Cheers

system · April 16, 2021, 2:52pm

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Block thumbnails are not being generated

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