Object SPRX &1 has wrong format

What causes this issue?

The object SPRX '&V1&' in the transport request has a wrong format. The
object name of a SPRX object has to start with a valid object type, eg
CLAS, DTEL...

System Response

The request can't be released.

How to fix this error?

Delete the object SPRX &V1& from the transport request.

Procedure for System Administrators

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

Error message extract from SAP system. Copyright SAP SE.