Error when deleting the MIME object &1

What causes this issue?

You attempted to delete the current Web interface. An error occurred in
the system when attempting to delete objects of the MIME Repository,
which belong to the Web interface.

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?

Switch to the Object Navigator (<DS:TRAN.SE80>transaction SE80</>).
Choose Environment -> MIME Repository.
Search in the navigation area for this file whose name is identical to
the Web interface that you want to delete.
Delete the MIME object, which belong to the file.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.