Fix Missing import.

 


git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@17720 20353a03-c40f-0410-a6d1-a30d3c3de9de

product/ERP5Form/PlanningBox.py

@@ -43,6 +43,7 @@
 from Products.PythonScripts.Utility import allow_class
 from Globals import InitializeClass
 
+from ZODB.POSException import ConflictError
 from Products.Formulator.Field import ZMIField
 from Products.Formulator.DummyField import fields
 from DateTime import DateTime