Cannot generate proxy (object &1 missing in WSDL, see long text)

INCLUDE SPRX_GET_WSDL OBJECT DOKU ID TX

What causes this issue?

In the WSDL document, the object
"<ZH>&V3&</>"
from the namespace
"<ZH>&V4&</>"
links to the object
"<ZH>&V1&</>"
from the namespace
"<ZH>&V2&</>"
However, this last object does not exist in the WSDL document.

System Response

ABAP proxy generation expects that all directly and indirectly
referenced objects are in the WSDL document. Therefore, no proxy can be
generated for this WSDL and the system displays an error message.

How to fix this error?

This situation can have different causes:
Object "<ZH>&V1&</>" not been defined
Object "<ZH>&V1&</>" saved in the wrong namespace
In the reference to object "<ZH>&V1&</>", the wrong name was specified
In the reference to object "<ZH>&V1&</>", the wrong namespace "<ZH>&V2&
</>" was specified
Internal error in the service that constructs the WSDL document
Internal error in ABAP proxy generation

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