Google App Engine DataStore內部服務器錯誤（localhost）

Question

我只是在爲Google Data Store製作標準介紹教程，而且我在Ubuntu上本地運行。它一開始工作，但由於某些原因，它停止工作，並始終顯示跟蹤錯誤。

這是我所得到的，如果我試圖訪問數據或當我去http://localhost:8000/datastore

我試圖刪除谷歌App Engine的文件夾，並重新下載它，並試圖命令清除數據。我用完了想法。有沒有人遇到過這個問題？

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

這是我所看到的，當我試圖在交互式控制檯上： 這是我所看到的，當我點擊數據存儲瀏覽器，數據存儲索引，或Blob存儲瀏覽器。

Answer 1

我想出瞭如何解決這個問題。

我意識到在我的項目文件夾中有一個「index.yaml」，這是它裏面的東西。

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 

在某些時候，我可能輸入了一個不正確的查詢，它被記錄在那裏。這導致了我的數據存儲區中的錯誤。刪除這個文件解決了這個問題。

我不確定我做了什麼樣的查詢導致這種情況發生。有一種擔心，即不正確的查詢可能會永久損壞數據庫。

Answer 2

如果要清除數據存儲的數據，你可以到你的應用程序的數據存儲區管理（雲控制檯>數據存儲>管理員），並從那裏刪除實體。如果實際上在已經創建了一些實體之後更改了數據模型，則可以解決此問題，從而導致不兼容的屬性類型。