Composition hierarchy tree (start &1, end &2) contains a cycle

What causes this issue?

In the composition hierarchy tree, the start specification &V1&
contains the end specification &V2& directly or indirectly, which, in
turn, contains the start specification &V1& directly.

System Response

You can run the search, but the search result may possibly contain
errors because of the cycle.

How to fix this error?

Remove the cycle by correcting the compositions of the specifications.

Error message extract from SAP system. Copyright SAP SE.