Hello
I want to import items to erpnext but i get bellow error when i open log . any one know what’s issue ?
Traceback (most recent call last):
File “/home/frappe/frappe-bench/apps/frappe/frappe/core/doctype/data_import/importer.py”, line 395, in upload
doc.insert()
File “/home/frappe/frappe-bench/apps/frappe/frappe/model/document.py”, line 215, in insert
self.set_new_name()
File “/home/frappe/frappe-bench/apps/frappe/frappe/model/document.py”, line 375, in set_new_name
set_new_name(self)
File “/home/frappe/frappe-bench/apps/frappe/frappe/model/naming.py”, line 38, in set_new_name
doc.run_method(“autoname”)
File “/home/frappe/frappe-bench/apps/frappe/frappe/model/document.py”, line 758, in run_method
out = Document.hook(fn)(self, *args, **kwargs)
File “/home/frappe/frappe-bench/apps/frappe/frappe/model/document.py”, line 1027, in composer
return composed(self, method, *args, **kwargs)
File “/home/frappe/frappe-bench/apps/frappe/frappe/model/document.py”, line 1010, in runner
add_to_return_value(self, fn(self, *args, **kwargs))
File “/home/frappe/frappe-bench/apps/frappe/frappe/model/document.py”, line 752, in
fn = lambda self, *args, **kwargs: getattr(self, method)(*args, **kwargs)
File “/home/frappe/frappe-bench/apps/erpnext/erpnext/stock/doctype/item/item.py”, line 47, in autoname
self.item_code = make_autoname(self.naming_series+‘.#####’, doc=self)
TypeError: unsupported operand type(s) for +: ‘NoneType’ and ‘unicode’