Summary
An ActivityParameterNode can only have incoming ActivityEdges if it represents a BehaviorParameter whose passing mode is "out" or "inout".
Details
An ActivityParameterNode that has at least one incoming ActivityEdge must represent a BehaviorParameter whose passing mode is "out" or "inout".
Tips
When you get an R1070 error, you should check that:
-
the involved ActivityParameterNode represents a BehaviorParameter
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the represented BehaviorParameter passing mode is "out" or "inout"