Google App Engine error: NeedIndexError: no matching index found

Question

I\'m having trouble with Google\'s App engine indexes. When running my app via the GoogleAppEngineLauncher, the app is working fine. When deploying the app, I get the follow

Answer 1

I fixed this issue by moving the index that the error says is missing above the auto generate line in the "index.yaml" file.

In your case the yaml file will look like:

indexes:
- kind: Bar
 ancestor: yes
 properties:
 - name: rating
   direction: desc

# AUTOGENERATED

Then all you have to do is update your app then update the indexes, you update the indexes by running the following command.

appcfg.py [options] update_indexes 

With the directory being the directory relative to your index.yaml file. You should then see that index on your dashboard at https://appengine.google.com/datastore/indexes

The update will initially be "pending" but after the index says "serving" you will be able to make your query.