Task steps failing with an error: "No destinations could send the message"

  • 15 February 2022
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MillaZ
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Task steps failing with an error: "No destinations could send the message"

kbt171668

PRODUCT
K2 Five
This article was created in response to a support issue logged with K2. The content may include typographical errors and may be revised at any time without notice. This article is not considered official documentation for K2 software and is provided "as is" with no warranties.

Issue

The following error is seen in the K2 HostServer log file:

Error","MessageBus","61007","SendMessageException","MessageBusRuntime","61007 Permanent failure sending message workflow request name 'testing' - Approval Required (Band 1): System.Exception: No destinations could send the message workflow request name 'testing' - Approval Required (Band 1). at SourceCode.MessageBus.Server.MessageBusRuntime.SourceCode.MessageBus.IMessageDestination.Send(String title, MessageExtendedInformation extended, IEnumerable`1 attachments, MessageBodyReader[] messageBodies) at SourceCode.MessageBus.Server.MessageBusRuntime.SourceCode.MessageBus.IMessageDestination.Send(String title, MessageExtendedInformation extended, IEnumerable`1 attachments, MessageBodyReader[] messageBodies)","","","Installdrive:C:Program FilesK2Host ServerBin","79961240","de700f92492e4709b4fbd0e16cedc7ca",""

Symptoms

The workflow gets stuck before the notification activity.

Troubleshooting Steps

This error gets raised if there is no mail server set as default in the management environment library:

 

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