Deploying app to Google App Engine (python)
create the project in your google app engine account by specifiying the 
Application identifier and title(say you have given your application identifier 
is=helloworld)
Go to the google app engine launcher and match your project name in the 
app.yaml 
with the name identifier you created in your google app engine account and then deploy it.
I'm new to this and trying to deploy a first app to the app engine. However, when i try to i get this message:
"This application does not exist (app_id=u'udacity')."
I fear it might have to do with the app.yaml file so i'll just leave here what i have there:
application: udacity
version: 1
runtime: python27
api_version: 1
threadsafe: yes
handlers:
- url: /favicon.ico
  static_files: favicon.ico
  upload: favicon.ico

url: /.*
script: main.app

libraries:
- name: webapp2
  version: "2.5.2"
Thanks in advance.