Resolving a stub item
If you have a stub item in the model, you can resolve that stub item by merging it into a new item of the same type.
When you merge a stub item into a new item, Modeler transfers the links and usage of the stub item to the new item, and then deletes the stub item.
To find stub items in a model:
Right-click the model, and select Find > All Model Stubs.
The found stub items are shown in the Results pane.
To resolve a stub item
The correct method to resolve a sub item is that you should add the package the stub item came from to the current model.
Modeler transfers the links and usage of the stub item to the new item, and then deletes the stub item.