Google App Engine Devserver + dispatch.yaml (gcloud)

Question

I am trying to start my app using the new cloud SDK preview (gcloud preview app run DIRNAME) and the response is:

INFO: Starting API server at: http://localhost:51695
INFO: Starting module "api" running at: http://localhost:8080
INFO: Starting module "default" running at: http://localhost:8081
INFO: Starting admin server at: http://localhost:8000

The dispatcher is not running and I can't get a dispatcher service URL as described here.

The dispatcher is fully function on production, but I just can't get it started via dev server.

How can i make Google Cloud SDK recognize dispatch.yaml?

The dispatch.yaml looks like this:

application: my-super-secret-app-id
dispatch:
- url: "*/"
  module: default

- url: "*/_*"
  module: api

The goal is to server all "regular" requests from the default module, and request begins with underscore to the "api" module.

Answer 1

Removing Google Cloud SDK completely and re-installing it's latest version solved the problem.