I am unable to activate workflow feature. it is a list workflow which has assign task activity.
This is a approval workflow. but after deployment i am not able to activate it throws the below error.
All the required list is created and target list and task list but it throws error "Microsoft.Workflow.Client.ActivityNotFoundException"
Microsoft.Workflow.Client.ActivityNotFoundException: The activity named 'WorkflowXaml_20d90204_8608_4c9d_ada7_d9b163b54268' from scope '/SharePoint/default/778c55e4-1ff5-4f28-86b9-87411eaeaa9e/5f962283-5c4a-48e8-8fec-5cdc1916f068' was not found. HTTP headers received from the server - ActivityId: ae7ba2d2-d519-425c-94d9-ebe2d879224e. NodeId: VDDP23G-5536CAF. Scope: /SharePoint/default/778c55e4-1ff5-4f28-86b9-87411eaeaa9e/5f962283-5c4a-48e8-8fec-5cdc1916f068. Client ActivityId : 8976859c-a9bf-107
Please help if you guys have faced this error while activating list workflow with assign task process as one of the activity.