Google App Engine DataStore内部服务器错误（localhost）

Question

我只是在为Google Data Store制作标准介绍教程，而且我在Ubuntu上本地运行。它一开始工作，但由于某些原因，它停止工作，并始终显示跟踪错误。

这是我所得到的，如果我试图访问数据或当我去http://localhost:8000/datastore

我试图删除谷歌App Engine的文件夹，并重新下载它，并试图命令清除数据。我用完了想法。有没有人遇到过这个问题？

Internal Server Error 

The server has either erred or is incapable of performing the requested operation. 

Traceback (most recent call last): 
    File "/home/matthew/Project/google_appengine/lib/webapp2-2.5.1/webapp2.py", line 1536, in __call__ 
    rv = self.handle_exception(request, response, e) 
    File "/home/matthew/Project/google_appengine/lib/webapp2-2.5.1/webapp2.py", line 1530, in __call__ 
    rv = self.router.dispatch(request, response) 
    File "/home/matthew/Project/google_appengine/lib/webapp2-2.5.1/webapp2.py", line 1278, in default_dispatcher 
    return route.handler_adapter(request, response) 
    File "/home/matthew/Project/google_appengine/lib/webapp2-2.5.1/webapp2.py", line 1102, in __call__ 
    return handler.dispatch() 
    File "/home/matthew/Project/google_appengine/google/appengine/tools/devappserver2/admin/admin_request_handler.py", line 96, in dispatch 
    super(AdminRequestHandler, self).dispatch() 
    File "/home/matthew/Project/google_appengine/lib/webapp2-2.5.1/webapp2.py", line 572, in dispatch 
    return self.handle_exception(e, self.app.debug) 
    File "/home/matthew/Project/google_appengine/lib/webapp2-2.5.1/webapp2.py", line 570, in dispatch 
    return method(*args, **kwargs) 
    File "/home/matthew/Project/google_appengine/google/appengine/tools/devappserver2/admin/datastore_viewer.py", line 667, in get 
    kinds = self._get_kinds(namespace) 
    File "/home/matthew/Project/google_appengine/google/appengine/tools/devappserver2/admin/datastore_viewer.py", line 603, in _get_kinds 
    return sorted([x.kind_name for x in q.run()]) 
    File "/home/matthew/Project/google_appengine/google/appengine/ext/db/__init__.py", line 2330, in next 
    return self.__model_class.from_entity(self.__iterator.next()) 
    File "/home/matthew/Project/google_appengine/google/appengine/datastore/datastore_query.py", line 3321, in next 
    next_batch = self.__batcher.next_batch(Batcher.AT_LEAST_OFFSET) 
    File "/home/matthew/Project/google_appengine/google/appengine/datastore/datastore_query.py", line 3207, in next_batch 
    batch = self.__next_batch.get_result() 
    File "/home/matthew/Project/google_appengine/google/appengine/api/apiproxy_stub_map.py", line 613, in get_result 
    return self.__get_result_hook(self) 
    File "/home/matthew/Project/google_appengine/google/appengine/datastore/datastore_query.py", line 2906, in __query_result_hook 
    self._batch_shared.conn.check_rpc_success(rpc) 
    File "/home/matthew/Project/google_appengine/google/appengine/datastore/datastore_rpc.py", line 1371, in check_rpc_success 
    rpc.check_success() 
    File "/home/matthew/Project/google_appengine/google/appengine/api/apiproxy_stub_map.py", line 579, in check_success 
    self.__rpc.CheckSuccess() 
    File "/home/matthew/Project/google_appengine/google/appengine/api/apiproxy_rpc.py", line 157, in _WaitImpl 
    self.request, self.response) 
    File "/home/matthew/Project/google_appengine/google/appengine/datastore/datastore_sqlite_stub.py", line 971, in MakeSyncCall 
    response, request_id) 
    File "/home/matthew/Project/google_appengine/google/appengine/api/apiproxy_stub.py", line 131, in MakeSyncCall 
    method(request, response) 
    File "/home/matthew/Project/google_appengine/google/appengine/datastore/datastore_stub_util.py", line 2962, in UpdateIndexesWrapper 
    self._SetupIndexes() 
    File "/home/matthew/Project/google_appengine/google/appengine/datastore/datastore_stub_util.py", line 3438, in _SetupIndexes 
    index_defs = datastore_index.ParseIndexDefinitions(index_text) 
    File "/home/matthew/Project/google_appengine/google/appengine/datastore/datastore_index.py", line 208, in ParseIndexDefinitions 
    return yaml_object.BuildSingleObject(IndexDefinitions, document) 
    File "/home/matthew/Project/google_appengine/google/appengine/api/yaml_object.py", line 321, in BuildSingleObject 
    definitions = BuildObjects(default_class, stream, loader) 
    File "/home/matthew/Project/google_appengine/google/appengine/api/yaml_object.py", line 304, in BuildObjects 
    listener.Parse(stream, loader) 
    File "/home/matthew/Project/google_appengine/google/appengine/api/yaml_listener.py", line 227, in Parse 
    self._HandleEvents(self._GenerateEventParameters(stream, loader_class)) 
    File "/home/matthew/Project/google_appengine/google/appengine/api/yaml_listener.py", line 178, in _HandleEvents 
    raise yaml_errors.EventError(e, event_object) 
EventError: Unable to assign value '5770237022568448' to attribute 'name': 
Value 5770237022568448 for name is not of the expected type str 
    in "<string>", line 17, column 11: 
     - name: 5770237022568448 

更新更多的信息

这是我所看到的，当我试图在交互式控制台上： 这是我所看到的，当我点击数据存储浏览器，数据存储索引，或Blob存储浏览器。

Answer 1

我想出了如何解决这个问题。

我意识到在我的项目文件夹中有一个“index.yaml”，这是它里面的东西。

indexes: 

# AUTOGENERATED 

# This index.yaml is automatically updated whenever the dev_appserver 
# detects that a new type of query is run. If you want to manage the 
# index.yaml file manually, remove the above marker line (the line 
# saying "# AUTOGENERATED"). If you want to manage some indexes 
# manually, move them above the marker line. The index.yaml file is 
# automatically uploaded to the admin console when you next deploy 
# your application using appcfg.py. 

- kind: Post 
    ancestor: yes 
    properties: 
    - name: 5770237022568448 
    direction: desc 

在某些时候，我可能输入了一个不正确的查询，它被记录在那里。这导致了我的数据存储区中的错误。删除这个文件解决了这个问题。

我不确定我做了什么样的查询导致这种情况发生。有一种担心，即不正确的查询可能会永久损坏数据库。

Answer 2

如果要清除数据存储的数据，你可以到你的应用程序的数据存储区管理（云控制台>数据存储>管理员），并从那里删除实体。如果实际上在已经创建了一些实体之后更改了数据模型，则可以解决此问题，从而导致不兼容的属性类型。