SAP Message 3G143 - WBS element with external number &1 is not recognized in the system

Diagnosis
The WBS element with the name &V1& is included in the imported dataset.This WBS element has been transferred from the sending system to thereceiving system.
However the WBS element &V1& does not exist in the receiving system.

System Response
The file cannot be imported.

Procedure
Check in the sending system whether the WBS element &V1& is incorrectlyincluded in the dataset.
If this is not the case, this means the transfer of the WBS element iscorrect and the WBS element &V1& must be created in the receivingsystem.