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Using projects in load balanced environment throws event exceptions

Found in

EPiServer.CMS.Core 9.9.1

Fixed in

EPiServer.CMS.UI 9.6.1

(Or a related package)

Created

May 16, 2016

Updated

Jun 27, 2018

Area

CMS UI

State

Closed, Fixed and tested

Description

Steps to reproduce

1. Configure two load-balanced sites (for example, vnlabvm04:2000 and vnlabvm34:2000).
2. Enable project mode on both sites.
3. Work with projects. For example, create a project, add content to it, submit comments, and tag users.

---> The updates are not reflected in the other sites.
---> The log file shows event exceptions as follows:

2016-05-16 09:56:34,381 [89] ERROR EPiServer.Events.Providers.EventProvider: Exception occured while raising MessageReceived for message '1' from '***'
System.AggregateException: One or more errors occurred. ---> System.AggregateException: One or more errors occurred. ---> Newtonsoft.Json.JsonSerializationException: Unable to find a constructor to use for type EPiServer.Shell.UI.Messaging.Internal.PushMessage. A class should either have a default constructor, one constructor with arguments or a constructor marked with the JsonConstructor attribute. Path 'Topic', line 1, position 9.
at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.CreateNewObject(JsonReader reader, JsonObjectContract objectContract, JsonProperty containerMember, JsonProperty containerProperty, String id, Boolean& createdFromNonDefaultCreator)
at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.CreateObject(JsonReader reader, Type objectType, JsonContract contract, JsonProperty member, JsonContainerContract containerContract, JsonProperty containerMember, Object existingValue)
at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.CreateValueInternal(JsonReader reader, Type objectType, JsonContract contract, JsonProperty member, JsonContainerContract containerContract, JsonProperty containerMember, Object existingValue)
at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.Deserialize(JsonReader reader, Type objectType, Boolean checkAdditionalContent)
at Newtonsoft.Json.JsonSerializer.DeserializeInternal(JsonReader reader, Type objectType)
at Newtonsoft.Json.JsonConvert.DeserializeObject(String value, Type type, JsonSerializerSettings settings)
at Newtonsoft.Json.JsonConvert.DeserializeObject[T](String value, JsonSerializerSettings settings)
at EPiServer.Shell.UI.Messaging.Internal.DefaultPushMessenger.EventRaised(Object sender, EventNotificationEventArgs e)
at EPiServer.Events.Clients.Event.<>c_DisplayClass38_0.<RaiseLocally>b_0()
at System.Threading.Tasks.Task.Execute()
— End of inner exception stack trace —
at System.Threading.Tasks.Task.Wait(Int32 millisecondsTimeout, CancellationToken cancellationToken)
at System.Threading.Tasks.Task.Wait()
at EPiServer.Events.Clients.Event.Raise(Guid raiserId, Object param, EventRaiseOption raiseOption)
at EPiServer.Events.Clients.Event.RemoteEventReceived(Object sender, EventReceivedEventArgs e)
at System.EventHandler`1.Invoke(Object sender, TEventArgs e)
at EPiServer.Events.Providers.EventProviderService.OnEventReceived(Object sender, EventReceivedEventArgs e)
— End of inner exception stack trace —
at EPiServer.Events.Providers.EventProviderService.OnEventReceived(Object sender, EventReceivedEventArgs e)
at EPiServer.Events.Providers.EventProviderService.Provider_OnMessageReceived(Object sender, EventMessageEventArgs e)
at EPiServer.Events.Providers.EventProvider.OnMessageReceived(EventMessageEventArgs args, Boolean suppressExceptions)
---> (Inner Exception #0) System.AggregateException: One or more errors occurred. ---> Newtonsoft.Json.JsonSerializationException: Unable to find a constructor to use for type EPiServer.Shell.UI.Messaging.Internal.PushMessage. A class should either have a default constructor, one constructor with arguments or a constructor marked with the JsonConstructor attribute. Path 'Topic', line 1, position 9.
at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.CreateNewObject(JsonReader reader, JsonObjectContract objectContract, JsonProperty containerMember, JsonProperty containerProperty, String id, Boolean& createdFromNonDefaultCreator)
at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.CreateObject(JsonReader reader, Type objectType, JsonContract contract, JsonProperty member, JsonContainerContract containerContract, JsonProperty containerMember, Object existingValue)
at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.CreateValueInternal(JsonReader reader, Type objectType, JsonContract contract, JsonProperty member, JsonContainerContract containerContract, JsonProperty containerMember, Object existingValue)
at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.Deserialize(JsonReader reader, Type objectType, Boolean checkAdditionalContent)
at Newtonsoft.Json.JsonSerializer.DeserializeInternal(JsonReader reader, Type objectType)
at Newtonsoft.Json.JsonConvert.DeserializeObject(String value, Type type, JsonSerializerSettings settings)
at Newtonsoft.Json.JsonConvert.DeserializeObject[T](String value, JsonSerializerSettings settings)
at EPiServer.Shell.UI.Messaging.Internal.DefaultPushMessenger.EventRaised(Object sender, EventNotificationEventArgs e)
at EPiServer.Events.Clients.Event.<>c_DisplayClass38_0.<RaiseLocally>b_0()
at System.Threading.Tasks.Task.Execute()
— End of inner exception stack trace —
at System.Threading.Tasks.Task.Wait(Int32 millisecondsTimeout, CancellationToken cancellationToken)
at System.Threading.Tasks.Task.Wait()
at EPiServer.Events.Clients.Event.Raise(Guid raiserId, Object param, EventRaiseOption raiseOption)
at EPiServer.Events.Clients.Event.RemoteEventReceived(Object sender, EventReceivedEventArgs e)
at System.EventHandler`1.Invoke(Object sender, TEventArgs e)
at EPiServer.Events.Providers.EventProviderService.OnEventReceived(Object sender, EventReceivedEventArgs e)
---> (Inner Exception #0) Newtonsoft.Json.JsonSerializationException: Unable to find a constructor to use for type EPiServer.Shell.UI.Messaging.Internal.PushMessage. A class should either have a default constructor, one constructor with arguments or a constructor marked with the JsonConstructor attribute. Path 'Topic', line 1, position 9.
at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.CreateNewObject(JsonReader reader, JsonObjectContract objectContract, JsonProperty containerMember, JsonProperty containerProperty, String id, Boolean& createdFromNonDefaultCreator)
at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.CreateObject(JsonReader reader, Type objectType, JsonContract contract, JsonProperty member, JsonContainerContract containerContract, JsonProperty containerMember, Object existingValue)
at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.CreateValueInternal(JsonReader reader, Type objectType, JsonContract contract, JsonProperty member, JsonContainerContract containerContract, JsonProperty containerMember, Object existingValue)
at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.Deserialize(JsonReader reader, Type objectType, Boolean checkAdditionalContent)
at Newtonsoft.Json.JsonSerializer.DeserializeInternal(JsonReader reader, Type objectType)
at Newtonsoft.Json.JsonConvert.DeserializeObject(String value, Type type, JsonSerializerSettings settings)
at Newtonsoft.Json.JsonConvert.DeserializeObject[T](String value, JsonSerializerSettings settings)
at EPiServer.Shell.UI.Messaging.Internal.DefaultPushMessenger.EventRaised(Object sender, EventNotificationEventArgs e)
at EPiServer.Events.Clients.Event.<>c_DisplayClass38_0.<RaiseLocally>b_0()
at System.Threading.Tasks.Task.Execute()<---
<---

System.AggregateException: One or more errors occurred. ---> System.AggregateException: One or more errors occurred. ---> Newtonsoft.Json.JsonSerializationException: Unable to find a constructor to use for type EPiServer.Shell.UI.Messaging.Internal.PushMessage. A class should either have a default constructor, one constructor with arguments or a constructor marked with the JsonConstructor attribute. Path 'Topic', line 1, position 9.
at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.CreateNewObject(JsonReader reader, JsonObjectContract objectContract, JsonProperty containerMember, JsonProperty containerProperty, String id, Boolean& createdFromNonDefaultCreator)
at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.CreateObject(JsonReader reader, Type objectType, JsonContract contract, JsonProperty member, JsonContainerContract containerContract, JsonProperty containerMember, Object existingValue)
at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.CreateValueInternal(JsonReader reader, Type objectType, JsonContract contract, JsonProperty member, JsonContainerContract containerContract, JsonProperty containerMember, Object existingValue)
at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.Deserialize(JsonReader reader, Type objectType, Boolean checkAdditionalContent)
at Newtonsoft.Json.JsonSerializer.DeserializeInternal(JsonReader reader, Type objectType)
at Newtonsoft.Json.JsonConvert.DeserializeObject(String value, Type type, JsonSerializerSettings settings)
at Newtonsoft.Json.JsonConvert.DeserializeObject[T](String value, JsonSerializerSettings settings)
at EPiServer.Shell.UI.Messaging.Internal.DefaultPushMessenger.EventRaised(Object sender, EventNotificationEventArgs e)
at EPiServer.Events.Clients.Event.<>c_DisplayClass38_0.<RaiseLocally>b_0()
at System.Threading.Tasks.Task.Execute()
— End of inner exception stack trace —
at System.Threading.Tasks.Task.Wait(Int32 millisecondsTimeout, CancellationToken cancellationToken)
at System.Threading.Tasks.Task.Wait()
at EPiServer.Events.Clients.Event.Raise(Guid raiserId, Object param, EventRaiseOption raiseOption)
at EPiServer.Events.Clients.Event.RemoteEventReceived(Object sender, EventReceivedEventArgs e)
at System.EventHandler`1.Invoke(Object sender, TEventArgs e)
at EPiServer.Events.Providers.EventProviderService.OnEventReceived(Object sender, EventReceivedEventArgs e)
— End of inner exception stack trace —
at EPiServer.Events.Providers.EventProviderService.OnEventReceived(Object sender, EventReceivedEventArgs e)
at EPiServer.Events.Providers.EventProviderService.Provider_OnMessageReceived(Object sender, EventMessageEventArgs e)
at EPiServer.Events.Providers.EventProvider.OnMessageReceived(EventMessageEventArgs args, Boolean suppressExceptions)
---> (Inner Exception #0) System.AggregateException: One or more errors occurred. ---> Newtonsoft.Json.JsonSerializationException: Unable to find a constructor to use for type EPiServer.Shell.UI.Messaging.Internal.PushMessage. A class should either have a default constructor, one constructor with arguments or a constructor marked with the JsonConstructor attribute. Path 'Topic', line 1, position 9.
at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.CreateNewObject(JsonReader reader, JsonObjectContract objectContract, JsonProperty containerMember, JsonProperty containerProperty, String id, Boolean& createdFromNonDefaultCreator)
at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.CreateObject(JsonReader reader, Type objectType, JsonContract contract, JsonProperty member, JsonContainerContract containerContract, JsonProperty containerMember, Object existingValue)
at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.CreateValueInternal(JsonReader reader, Type objectType, JsonContract contract, JsonProperty member, JsonContainerContract containerContract, JsonProperty containerMember, Object existingValue)
at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.Deserialize(JsonReader reader, Type objectType, Boolean checkAdditionalContent)
at Newtonsoft.Json.JsonSerializer.DeserializeInternal(JsonReader reader, Type objectType)
at Newtonsoft.Json.JsonConvert.DeserializeObject(String value, Type type, JsonSerializerSettings settings)
at Newtonsoft.Json.JsonConvert.DeserializeObject[T](String value, JsonSerializerSettings settings)
at EPiServer.Shell.UI.Messaging.Internal.DefaultPushMessenger.EventRaised(Object sender, EventNotificationEventArgs e)
at EPiServer.Events.Clients.Event.<>c_DisplayClass38_0.<RaiseLocally>b_0()
at System.Threading.Tasks.Task.Execute()
— End of inner exception stack trace —
at System.Threading.Tasks.Task.Wait(Int32 millisecondsTimeout, CancellationToken cancellationToken)
at System.Threading.Tasks.Task.Wait()
at EPiServer.Events.Clients.Event.Raise(Guid raiserId, Object param, EventRaiseOption raiseOption)
at EPiServer.Events.Clients.Event.RemoteEventReceived(Object sender, EventReceivedEventArgs e)
at System.EventHandler`1.Invoke(Object sender, TEventArgs e)
at EPiServer.Events.Providers.EventProviderService.OnEventReceived(Object sender, EventReceivedEventArgs e)
---> (Inner Exception #0) Newtonsoft.Json.JsonSerializationException: Unable to find a constructor to use for type EPiServer.Shell.UI.Messaging.Internal.PushMessage. A class should either have a default constructor, one constructor with arguments or a constructor marked with the JsonConstructor attribute. Path 'Topic', line 1, position 9.
at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.CreateNewObject(JsonReader reader, JsonObjectContract objectContract, JsonProperty containerMember, JsonProperty containerProperty, String id, Boolean& createdFromNonDefaultCreator)
at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.CreateObject(JsonReader reader, Type objectType, JsonContract contract, JsonProperty member, JsonContainerContract containerContract, JsonProperty containerMember, Object existingValue)
at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.CreateValueInternal(JsonReader reader, Type objectType, JsonContract contract, JsonProperty member, JsonContainerContract containerContract, JsonProperty containerMember, Object existingValue)
at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.Deserialize(JsonReader reader, Type objectType, Boolean checkAdditionalContent)
at Newtonsoft.Json.JsonSerializer.DeserializeInternal(JsonReader reader, Type objectType)
at Newtonsoft.Json.JsonConvert.DeserializeObject(String value, Type type, JsonSerializerSettings settings)
at Newtonsoft.Json.JsonConvert.DeserializeObject[T](String value, JsonSerializerSettings settings)
at EPiServer.Shell.UI.Messaging.Internal.DefaultPushMessenger.EventRaised(Object sender, EventNotificationEventArgs e)
at EPiServer.Events.Clients.Event.<>c_DisplayClass38_0.<RaiseLocally>b_0()
at System.Threading.Tasks.Task.Execute()<---
<---

2016-05-16 09:56:34,772 [89] ERROR EPiServer.Events.Providers.EventProvider: Exception occured while raising MessageReceived for message '2' from 'VNLABVM34'
System.AggregateException: One or more errors occurred. ---> System.AggregateException: One or more errors occurred. ---> Newtonsoft.Json.JsonSerializationException: Unable to find a constructor to use for type EPiServer.Shell.UI.Messaging.Internal.PushMessage. A class should either have a default constructor, one constructor with arguments or a constructor marked with the JsonConstructor attribute. Path 'Topic', line 1, position 9.
at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.CreateNewObject(JsonReader reader, JsonObjectContract objectContract, JsonProperty containerMember, JsonProperty containerProperty, String id, Boolean& createdFromNonDefaultCreator)
at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.CreateObject(JsonReader reader, Type objectType, JsonContract contract, JsonProperty member, JsonContainerContract containerContract, JsonProperty containerMember, Object existingValue)
at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.CreateValueInternal(JsonReader reader, Type objectType, JsonContract contract, JsonProperty member, JsonContainerContract containerContract, JsonProperty containerMember, Object existingValue)
at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.Deserialize(JsonReader reader, Type objectType, Boolean checkAdditionalContent)
at Newtonsoft.Json.JsonSerializer.DeserializeInternal(JsonReader reader, Type objectType)
at Newtonsoft.Json.JsonConvert.DeserializeObject(String value, Type type, JsonSerializerSettings settings)
at Newtonsoft.Json.JsonConvert.DeserializeObject[T](String value, JsonSerializerSettings settings)
at EPiServer.Shell.UI.Messaging.Internal.DefaultPushMessenger.EventRaised(Object sender, EventNotificationEventArgs e)
at EPiServer.Events.Clients.Event.<>c_DisplayClass38_0.<RaiseLocally>b_0()
at System.Threading.Tasks.Task.Execute()
— End of inner exception stack trace —
at System.Threading.Tasks.Task.Wait(Int32 millisecondsTimeout, CancellationToken cancellationToken)
at System.Threading.Tasks.Task.Wait()
at EPiServer.Events.Clients.Event.Raise(Guid raiserId, Object param, EventRaiseOption raiseOption)
at EPiServer.Events.Clients.Event.RemoteEventReceived(Object sender, EventReceivedEventArgs e)
at System.EventHandler`1.Invoke(Object sender, TEventArgs e)
at EPiServer.Events.Providers.EventProviderService.OnEventReceived(Object sender, EventReceivedEventArgs e)
— End of inner exception stack trace —
at EPiServer.Events.Providers.EventProviderService.OnEventReceived(Object sender, EventReceivedEventArgs e)
at EPiServer.Events.Providers.EventProviderService.Provider_OnMessageReceived(Object sender, EventMessageEventArgs e)
at EPiServer.Events.Providers.EventProvider.OnMessageReceived(EventMessageEventArgs args, Boolean suppressExceptions)
---> (Inner Exception #0) System.AggregateException: One or more errors occurred. ---> Newtonsoft.Json.JsonSerializationException: Unable to find a constructor to use for type EPiServer.Shell.UI.Messaging.Internal.PushMessage. A class should either have a default constructor, one constructor with arguments or a constructor marked with the JsonConstructor attribute. Path 'Topic', line 1, position 9.
at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.CreateNewObject(JsonReader reader, JsonObjectContract objectContract, JsonProperty containerMember, JsonProperty containerProperty, String id, Boolean& createdFromNonDefaultCreator)
at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.CreateObject(JsonReader reader, Type objectType, JsonContract contract, JsonProperty member, JsonContainerContract containerContract, JsonProperty containerMember, Object existingValue)
at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.CreateValueInternal(JsonReader reader, Type objectType, JsonContract contract, JsonProperty member, JsonContainerContract containerContract, JsonProperty containerMember, Object existingValue)
at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.Deserialize(JsonReader reader, Type objectType, Boolean checkAdditionalContent)
at Newtonsoft.Json.JsonSerializer.DeserializeInternal(JsonReader reader, Type objectType)
at Newtonsoft.Json.JsonConvert.DeserializeObject(String value, Type type, JsonSerializerSettings settings)
at Newtonsoft.Json.JsonConvert.DeserializeObject[T](String value, JsonSerializerSettings settings)
at EPiServer.Shell.UI.Messaging.Internal.DefaultPushMessenger.EventRaised(Object sender, EventNotificationEventArgs e)
at EPiServer.Events.Clients.Event.<>c_DisplayClass38_0.<RaiseLocally>b_0()
at System.Threading.Tasks.Task.Execute()
— End of inner exception stack trace —
at System.Threading.Tasks.Task.Wait(Int32 millisecondsTimeout, CancellationToken cancellationToken)
at System.Threading.Tasks.Task.Wait()
at EPiServer.Events.Clients.Event.Raise(Guid raiserId, Object param, EventRaiseOption raiseOption)
at EPiServer.Events.Clients.Event.RemoteEventReceived(Object sender, EventReceivedEventArgs e)
at System.EventHandler`1.Invoke(Object sender, TEventArgs e)
at EPiServer.Events.Providers.EventProviderService.OnEventReceived(Object sender, EventReceivedEventArgs e)
---> (Inner Exception #0) Newtonsoft.Json.JsonSerializationException: Unable to find a constructor to use for type EPiServer.Shell.UI.Messaging.Internal.PushMessage. A class should either have a default constructor, one constructor with arguments or a constructor marked with the JsonConstructor attribute. Path 'Topic', line 1, position 9.
at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.CreateNewObject(JsonReader reader, JsonObjectContract objectContract, JsonProperty containerMember, JsonProperty containerProperty, String id, Boolean& createdFromNonDefaultCreator)
at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.CreateObject(JsonReader reader, Type objectType, JsonContract contract, JsonProperty member, JsonContainerContract containerContract, JsonProperty containerMember, Object existingValue)
at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.CreateValueInternal(JsonReader reader, Type objectType, JsonContract contract, JsonProperty member, JsonContainerContract containerContract, JsonProperty containerMember, Object existingValue)
at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.Deserialize(JsonReader reader, Type objectType, Boolean checkAdditionalContent)
at Newtonsoft.Json.JsonSerializer.DeserializeInternal(JsonReader reader, Type objectType)
at Newtonsoft.Json.JsonConvert.DeserializeObject(String value, Type type, JsonSerializerSettings settings)
at Newtonsoft.Json.JsonConvert.DeserializeObject[T](String value, JsonSerializerSettings settings)
at EPiServer.Shell.UI.Messaging.Internal.DefaultPushMessenger.EventRaised(Object sender, EventNotificationEventArgs e)
at EPiServer.Events.Clients.Event.<>c_DisplayClass38_0.<RaiseLocally>b_0()
at System.Threading.Tasks.Task.Execute()<---
<---

System.AggregateException: One or more errors occurred. ---> System.AggregateException: One or more errors occurred. ---> Newtonsoft.Json.JsonSerializationException: Unable to find a constructor to use for type EPiServer.Shell.UI.Messaging.Internal.PushMessage. A class should either have a default constructor, one constructor with arguments or a constructor marked with the JsonConstructor attribute. Path 'Topic', line 1, position 9.
at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.CreateNewObject(JsonReader reader, JsonObjectContract objectContract, JsonProperty containerMember, JsonProperty containerProperty, String id, Boolean& createdFromNonDefaultCreator)
at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.CreateObject(JsonReader reader, Type objectType, JsonContract contract, JsonProperty member, JsonContainerContract containerContract, JsonProperty containerMember, Object existingValue)
at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.CreateValueInternal(JsonReader reader, Type objectType, JsonContract contract, JsonProperty member, JsonContainerContract containerContract, JsonProperty containerMember, Object existingValue)
at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.Deserialize(JsonReader reader, Type objectType, Boolean checkAdditionalContent)
at Newtonsoft.Json.JsonSerializer.DeserializeInternal(JsonReader reader, Type objectType)
at Newtonsoft.Json.JsonConvert.DeserializeObject(String value, Type type, JsonSerializerSettings settings)
at Newtonsoft.Json.JsonConvert.DeserializeObject[T](String value, JsonSerializerSettings settings)
at EPiServer.Shell.UI.Messaging.Internal.DefaultPushMessenger.EventRaised(Object sender, EventNotificationEventArgs e)
at EPiServer.Events.Clients.Event.<>c_DisplayClass38_0.<RaiseLocally>b_0()
at System.Threading.Tasks.Task.Execute()
— End of inner exception stack trace —
at System.Threading.Tasks.Task.Wait(Int32 millisecondsTimeout, CancellationToken cancellationToken)
at System.Threading.Tasks.Task.Wait()
at EPiServer.Events.Clients.Event.Raise(Guid raiserId, Object param, EventRaiseOption raiseOption)
at EPiServer.Events.Clients.Event.RemoteEventReceived(Object sender, EventReceivedEventArgs e)
at System.EventHandler`1.Invoke(Object sender, TEventArgs e)
at EPiServer.Events.Providers.EventProviderService.OnEventReceived(Object sender, EventReceivedEventArgs e)
— End of inner exception stack trace —
at EPiServer.Events.Providers.EventProviderService.OnEventReceived(Object sender, EventReceivedEventArgs e)
at EPiServer.Events.Providers.EventProviderService.Provider_OnMessageReceived(Object sender, EventMessageEventArgs e)
at EPiServer.Events.Providers.EventProvider.OnMessageReceived(EventMessageEventArgs args, Boolean suppressExceptions)
---> (Inner Exception #0) System.AggregateException: One or more errors occurred. ---> Newtonsoft.Json.JsonSerializationException: Unable to find a constructor to use for type EPiServer.Shell.UI.Messaging.Internal.PushMessage. A class should either have a default constructor, one constructor with arguments or a constructor marked with the JsonConstructor attribute. Path 'Topic', line 1, position 9.
at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.CreateNewObject(JsonReader reader, JsonObjectContract objectContract, JsonProperty containerMember, JsonProperty containerProperty, String id, Boolean& createdFromNonDefaultCreator)
at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.CreateObject(JsonReader reader, Type objectType, JsonContract contract, JsonProperty member, JsonContainerContract containerContract, JsonProperty containerMember, Object existingValue)
at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.CreateValueInternal(JsonReader reader, Type objectType, JsonContract contract, JsonProperty member, JsonContainerContract containerContract, JsonProperty containerMember, Object existingValue)
at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.Deserialize(JsonReader reader, Type objectType, Boolean checkAdditionalContent)
at Newtonsoft.Json.JsonSerializer.DeserializeInternal(JsonReader reader, Type objectType)
at Newtonsoft.Json.JsonConvert.DeserializeObject(String value, Type type, JsonSerializerSettings settings)
at Newtonsoft.Json.JsonConvert.DeserializeObject[T](String value, JsonSerializerSettings settings)
at EPiServer.Shell.UI.Messaging.Internal.DefaultPushMessenger.EventRaised(Object sender, EventNotificationEventArgs e)
at EPiServer.Events.Clients.Event.<>c_DisplayClass38_0.<RaiseLocally>b_0()
at System.Threading.Tasks.Task.Execute()
— End of inner exception stack trace —
at System.Threading.Tasks.Task.Wait(Int32 millisecondsTimeout, CancellationToken cancellationToken)
at System.Threading.Tasks.Task.Wait()
at EPiServer.Events.Clients.Event.Raise(Guid raiserId, Object param, EventRaiseOption raiseOption)
at EPiServer.Events.Clients.Event.RemoteEventReceived(Object sender, EventReceivedEventArgs e)
at System.EventHandler`1.Invoke(Object sender, TEventArgs e)
at EPiServer.Events.Providers.EventProviderService.OnEventReceived(Object sender, EventReceivedEventArgs e)
---> (Inner Exception #0) Newtonsoft.Json.JsonSerializationException: Unable to find a constructor to use for type EPiServer.Shell.UI.Messaging.Internal.PushMessage. A class should either have a default constructor, one constructor with arguments or a constructor marked with the JsonConstructor attribute. Path 'Topic', line 1, position 9.
at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.CreateNewObject(JsonReader reader, JsonObjectContract objectContract, JsonProperty containerMember, JsonProperty containerProperty, String id, Boolean& createdFromNonDefaultCreator)
at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.CreateObject(JsonReader reader, Type objectType, JsonContract contract, JsonProperty member, JsonContainerContract containerContract, JsonProperty containerMember, Object existingValue)
at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.CreateValueInternal(JsonReader reader, Type objectType, JsonContract contract, JsonProperty member, JsonContainerContract containerContract, JsonProperty containerMember, Object existingValue)
at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.Deserialize(JsonReader reader, Type objectType, Boolean checkAdditionalContent)
at Newtonsoft.Json.JsonSerializer.DeserializeInternal(JsonReader reader, Type objectType)
at Newtonsoft.Json.JsonConvert.DeserializeObject(String value, Type type, JsonSerializerSettings settings)
at Newtonsoft.Json.JsonConvert.DeserializeObject[T](String value, JsonSerializerSettings settings)
at EPiServer.Shell.UI.Messaging.Internal.DefaultPushMessenger.EventRaised(Object sender, EventNotificationEventArgs e)
at EPiServer.Events.Clients.Event.<>c_DisplayClass38_0.<RaiseLocally>b_0()
at System.Threading.Tasks.Task.Execute()<---
<---