SAP Message PU815 - SAP names file for & locked by another process

Diagnosis
An operating system file (the SAPNAMES file of user &V1&) could not beaccessed from the program that is running, since it is locked byanother transaction.
The name of the lock file is "&V2&".

System Response

Procedure
Execute the function again after a few seconds.
If the message occurs regularly, contact your SAP administrator.