diff --git a/erpnext/accounts/doctype/sales_invoice/sales_invoice.py b/erpnext/accounts/doctype/sales_invoice/sales_invoice.py
index c8ff232..a0ce980 100644
--- a/erpnext/accounts/doctype/sales_invoice/sales_invoice.py
+++ b/erpnext/accounts/doctype/sales_invoice/sales_invoice.py
@@ -300,6 +300,9 @@
 		account = frappe.db.get_value("Account", self.debit_to,
 			["account_type", "report_type", "account_currency"], as_dict=True)
 
+		if not account:
+			frappe.throw(_("Debit To is required"))
+
 		if account.report_type != "Balance Sheet":
 			frappe.throw(_("Debit To account must be a Balance Sheet account"))
 
diff --git a/erpnext/setup/setup_wizard/setup_wizard.py b/erpnext/setup/setup_wizard/setup_wizard.py
index 9892e71..9be2880 100644
--- a/erpnext/setup/setup_wizard/setup_wizard.py
+++ b/erpnext/setup/setup_wizard/setup_wizard.py
@@ -109,20 +109,24 @@
 	create_bank_account(args)
 
 	args["curr_fiscal_year"] = curr_fiscal_year
-	
+
 def create_bank_account(args):
 	if args.get("bank_account"):
-		bank_account_group =  frappe.db.get_value("Account", 
+		bank_account_group =  frappe.db.get_value("Account",
 			{"account_type": "Bank", "is_group": 1, "root_type": "Asset"})
 		if bank_account_group:
-			frappe.get_doc({
+			bank_account = frappe.get_doc({
 				"doctype": "Account",
 				'account_name': args.get("bank_account"),
 				'parent_account': bank_account_group,
 				'is_group':0,
 				'company':args.get('company_name').strip(),
 				"account_type": "Bank",
-			}).insert()
+			})
+			try:
+				bank_account.insert()
+			except RootNotEditable:
+				frappe.throw(_("Bank account cannot be named as {0}").format(args.get("bank_account")))
 
 def create_price_lists(args):
 	for pl_type, pl_name in (("Selling", _("Standard Selling")), ("Buying", _("Standard Buying"))):