I have a Django (Version 1.4.0) web app which uses neo4django mapper to run queries on neo4j (Version 1.8.2).
However, as soon as I do a query like
OnlinePerson.objects.filter(name="Bijan")
I get a Runtime error as
('The type node for class OnlinePerson could not be created in the database.', StatusException())
I tried many different things, but couldn't resolve!
Traceback:
File "/Library/Python/2.7/site-packages/django/core/handlers/base.py" in get_response
111. response = callback(request, *callback_args, **callback_kwargs)
File "/Users/Bijan/BHIC/mySVN/NeoD/src/NeoD/views.py" in home
22. return render_to_response('index.html', {'Person' : entries, 'Person2': ["Bijan","Nastaran"]})
File "/Library/Python/2.7/site-packages/django/shortcuts/__init__.py" in render_to_response
20. return HttpResponse(loader.render_to_string(*args, **kwargs), **httpresponse_kwargs)
File "/Library/Python/2.7/site-packages/django/template/loader.py" in render_to_string
171. return t.render(Context(dictionary))
File "/Library/Python/2.7/site-packages/django/template/base.py" in render
140. return self._render(context)
File "/Library/Python/2.7/site-packages/django/template/base.py" in _render
134. return self.nodelist.render(context)
File "/Library/Python/2.7/site-packages/django/template/base.py" in render
823. bit = self.render_node(node, context)
File "/Library/Python/2.7/site-packages/django/template/debug.py" in render_node
74. return node.render(context)
File "/Library/Python/2.7/site-packages/django/template/defaulttags.py" in render
145. len_values = len(values)
File "/Library/Python/2.7/site-packages/django/db/models/query.py" in __len__
85. self._result_cache = list(self.iterator())
File "/Library/Python/2.7/site-packages/neo4django/db/models/query.py" in iterator
733. for model in self.query.execute(using):
File "/Library/Python/2.7/site-packages/neo4django/db/models/query.py" in execute
610. type_node = self.nodetype._type_node(using)
File "/Library/Python/2.7/site-packages/neo4django/db/models/base.py" in _type_node
423. return cls.__type_node_classmethod(using)
File "/Library/Python/2.7/site-packages/neo4django/db/models/base.py" in __type_node
406. raise RuntimeError(error_message, e)
Exception Type: RuntimeError at /
Exception Value: ('The type node for class OnlinePerson could not be created in the database.', StatusException())
Finally after lots of struggles and trying out different solutions the problem is solved. I think the main problem was with my neo4j version (1.8.2).
After switching back to 1.7.2, everything worked correctly.