You cannot flag the checklist template &1 for archiving

What causes this issue?

References to the checklist template &V1& still exist. You cannot flag
the template for archiving.

System Response

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

How to fix this error?

Resolve the corresponding checklist references or delete the references.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.