Invalid predecessor of object & for field-dependence type 'I'.

What causes this issue?

The predecessor object &V2& was specified for the object &V1& in a
field relationship of type 'I', but only a root object is allowed as
predecessor in this case.

System Response

The View cluster was not activated.

How to fix this error?

A field relationship of type 'I' bequeathes a root object subset field
selection condition which was specified when the
View cluster was called,
to
another View cluster object
which was not directly dependent on this root object.

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Specify the root object from which the object &V1& should copy the
initial subset restriction as predecessor.
Example:
A View cluster has two root objects (VIEW1 and VIEW2) which both
contain the company code as a subset field. The company code popup
should only be processed once in this case.
A field relationship of type 'I' is specified in the field dependency
for VIEW2. VIEW1 is entered as predecessor, the field name of the
company code from VIEW1 as predecessor field.

Error message extract from SAP system. Copyright SAP SE.