SAP Message UPS193 - Preceding packet &1 has not been distributed

Diagnosis
You want to distribute a distribution package.
Due to the serialization, all predecessor packages of the distributionunit must be distributed first. The predecessor package &V1&, however,has not yet been distributed.

System Response
The distribution package cannot be distributed (yet).

Procedure
Ensure that all predecessor packages of the current distributionpackage are distributed.