Syntax error: Segment & must appear in view &

What causes this issue?

View &v2& must contain segment &v1&, so that the syntax of the assigned
basic type or extension is not violated.

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?

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.