add a very useful information to show how to fix this problem.

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@38441 20353a03-c40f-0410-a6d1-a30d3c3de9de

product/ERP5/Document/SQLNonContinuousIncreasingIdGenerator.py

@@ -98,8 +98,9 @@ class SQLNonContinuousIncreasingIdGenerator(IdGenerator):
       if last_max_id_dict.get(id_group, None) is not None and \
           last_max_id_dict[id_group].value > new_id:
         raise ValueError, 'The last_id %s stored in zodb dictionary is ' \
-            'higher than the new id %s generated for id_group %s' % \
-            (last_max_id_dict[id_group].value, new_id, id_group)
+            'higher than the new id %s generated for id_group %s. ' \
+            'invoke %s/rebuildSqlTable to fix this problem.' % \
+            (last_max_id_dict[id_group].value, new_id, id_group, self.absolute_url())
       # Check the store interval to store the data
       store_interval = self.getStoreInterval()
       if not store_interval: