出现 NeedIndexError，是不是要等索引完毕？

上传完毕，首页出现：

Traceback (most recent call last):
File "/base/python_runtime/python_lib/versions/1/google/appengine/ext/webapp/__init__.py", line 511, in __call__
handler.get(*groups)
File "/base/data/home/apps/putoor/1.344671389517718388/main.py", line 174, in get
for node in qx:
File "/base/python_runtime/python_lib/versions/1/google/appengine/ext/db/__init__.py", line 1786, in __iter__
return self.run()
File "/base/python_runtime/python_lib/versions/1/google/appengine/ext/db/__init__.py", line 2367, in run
results = _BaseQuery.run(self, **kwargs)
File "/base/python_runtime/python_lib/versions/1/google/appengine/ext/db/__init__.py", line 1770, in run
iterator = raw_query.Run(rpc=rpc)
File "/base/python_runtime/python_lib/versions/1/google/appengine/api/datastore.py", line 1151, in Run
return self._Run(**kwargs)
File "/base/python_runtime/python_lib/versions/1/google/appengine/api/datastore.py", line 1188, in _Run
str(exc) + '\nThis query needs this index:\n' + yaml)
NeedIndexError: The index for this query is not ready to serve. See the Datastore Indexes page in the Admin Console.
This query needs this index:
- kind: Node
properties:
- name: category
- name: topics
direction: desc

——————————————————What can I do? wait?_________________________