fixed import errors
diff --git a/erpnext/projects/doctype/task/task.py b/erpnext/projects/doctype/task/task.py
index 4d1065d..b52e2d8 100644
--- a/erpnext/projects/doctype/task/task.py
+++ b/erpnext/projects/doctype/task/task.py
@@ -4,10 +4,8 @@
 from __future__ import unicode_literals
 import frappe, json
 
-from frappe.utils import getdate
+from frappe.utils import getdate, date_diff, add_days
 from frappe import _
-from data import date_diff, add_days
-
 
 from frappe.model.document import Document