Compounding parent &1 of navigation attribute &2 is not active

What causes this issue?

You have activated navigation attribute &V2& of field &V3& while its
compounding parent &V1& is not active as a navigation attribute.

System Response

The system cannot validate the model. It has a compounding inconsistency
which may result in semantically incorrect reporting results.

How to fix this error?

Fix the model and re-check.

Procedure for System Administrators

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

Error message extract from SAP system. Copyright SAP SE.