title: 'gcloud app deploy' command not working
body: <p>I have a python version google app engine installed and I have created a new project in console. I followed the instruction in my terminal I use command <code>gcloud app deploy</code> in my working directory then I got this error:</p>
  
  <pre><code>ERROR: The [application] field is specified in file 
  [/Users/fengxinlin/project/app.yaml]. This field is not used by 
  gcloud and must be removed. Project name should instead be specified 
  either by `gcloud config set project MY_PROJECT` or by setting the `-
  -project` flag on individual command executions.
  ERROR: (gcloud.app.deploy) Errors occurred while parsing the App 
  Engine app configuration.
  </code></pre>
  
  <p>then I tried <code>gcloud config set project [one of my project]</code> after that I <code>gcloud app deploy</code> again, I got same error, is there any thing wrong with my command?</p>