“主题收藏”页面出错

Traceback (most recent call last):
File "/base/python_runtime/python_lib/versions/1/google/appengine/ext/webapp/__init__.py", line 634, in __call__
handler.get(*groups)
File "/base/data/home/apps/v2ex/1.349548081764999296/my.py", line 83, in get
output = template.render(path, template_values)
File "/base/python_runtime/python_lib/versions/1/google/appengine/ext/webapp/template.py", line 73, in render
return t.render(Context(template_dict))
File "/base/python_runtime/python_lib/versions/1/google/appengine/ext/webapp/template.py", line 115, in wrap_render
return orig_render(context)
File "/base/python_runtime/python_lib/versions/third_party/django-0.96/django/template/__init__.py", line 168, in render
return self.nodelist.render(context)
File "/base/python_runtime/python_lib/versions/third_party/django-0.96/django/template/__init__.py", line 705, in render
bits.append(self.render_node(node, context))
File "/base/python_runtime/python_lib/versions/third_party/django-0.96/django/template/__init__.py", line 718, in render_node
return(node.render(context))
File "/base/python_runtime/python_lib/versions/third_party/django-0.96/django/template/defaulttags.py", line 209, in render
return self.nodelist_true.render(context)
File "/base/python_runtime/python_lib/versions/third_party/django-0.96/django/template/__init__.py", line 705, in render
bits.append(self.render_node(node, context))
File "/base/python_runtime/python_lib/versions/third_party/django-0.96/django/template/__init__.py", line 718, in render_node
return(node.render(context))
File "/base/python_runtime/python_lib/versions/third_party/django-0.96/django/template/defaulttags.py", line 122, in render
nodelist.append(node.render(context))
File "/base/python_runtime/python_lib/versions/third_party/django-0.96/django/template/__init__.py", line 767, in render
output = self.filter_expression.resolve(context)
File "/base/python_runtime/python_lib/versions/third_party/django-0.96/django/template/__init__.py", line 563, in resolve
obj = resolve_variable(self.var, context)
File "/base/python_runtime/python_lib/versions/third_party/django-0.96/django/template/__init__.py", line 650, in resolve_variable
current = getattr(current, bits[0])
File "/base/python_runtime/python_lib/versions/1/google/appengine/ext/db/__init__.py", line 3384, in __get__
reference_id.to_path())
Error: ReferenceProperty failed to be resolved: [u'Node', 903001L, u'Topic', 282001L]