Symptoms
When using SmartObject method in a Redirect escalation in a workflow, creating a package throws the error "'Process is referencing the return type 'list' of the '[method]' method on the '[SmartObject]' SmartObject that could not be found.
Diagnoses
This is a bug when packaging a process that uses a SmartObject method in a redirect escalation.
Resolution
Some options for workarounds:
1) Remove the Escalation package and then add escalation back after deployment.
2) Add a Datafield before the client event and populate it with the desired SmartObject method. Use this DataField in the Escalation.