I want to test the purchase features. When I want to choose lines this happen:
Warning:
Traceback (most recent call last):
File "/trytond/wsgi.py", line 117, in dispatch_request
return endpoint(request, **request.view_args)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/trytond/protocols/dispatcher.py", line 46, in rpc
return methods.get(request.rpc_method, _dispatch)(
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/trytond/wsgi.py", line 84, in auth_required
return wrapped(*args, **kwargs)
^^^^^^^^^^^^^^^^^^^^^^^^
File "/trytond/protocols/wrappers.py", line 181, in wrapper
return func(request, pool, *args, **kwargs)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/trytond/protocols/dispatcher.py", line 185, in _dispatch
result = rpc.result(meth(inst, *c_args, **c_kwargs))
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/trytond/model/modelview.py", line 88, in wrapper
result = func(self, *args, **kwargs)
^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/trytond/model/fields/field.py", line 123, in wrapper
return func(self, *args, **kwargs)
^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/trytond/modules/purchase/purchase.py", line 1323, in on_change_product
category = self.product.purchase_uom.category
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
AttributeError: 'NoneType' object has no attribute 'category'