GL Ledger flexfield not created

   Hi

I have completed Accounting Flexfield. It has been successfully completed, However GL Ledger flexfield is not generated.

When i run Program - Generate Ledger Flexfield request. The request is completed successfully but GL Ledger flexfield is still not created, when i saw Log Output

+---------------------------------------------------------------------------+
Start of log messages from FND_FILE
+---------------------------------------------------------------------------+
ORA-01400: cannot insert NULL into ("APPLSYS"."FND_SEGMENT_ATTRIBUTE_VALUES"."LAST_UPDATE_LOGIN")
+---------------------------------------------------------------------------+
End of log messages from FND_FILE
+---------------------------------------------------------------------------+

 What may be the issue ? Metalink has recommended Patch: 8459241:R12.GL.A GLCOAM - Generate Ledger Flexfield ends with error ORA-01400

But we have other Ledgers also on the same instance & those Accouting flexfields respective GL ledger flexfields have been generated automatically.