Predecessor of object & cannot be the object itself.

What causes this issue?

The object &V1& is specified as its own predecessor.
This is only allowed for header entries when the field dependency uses
the navigation (field relationship type ' ').

System Response

The View cluster was not activated.

How to fix this error?

If the specified field dependency uses the navigation, enter the name
ofthe object which is directly above the current object in the View
cluster object hierarchy.
Otherwise enter the object to which the field dependency refers.

Error message extract from SAP system. Copyright SAP SE.