title: AWS CodeBuild + CodePipeline: "No matching artifact paths found"
body: <p>I am attempting to get CodePipeline to fetch my code from GitHub and build it with CodeBuild. The first (Source) step works fine. But the second (Build) step fails during the "UPLOAD_ARTIFACTS" part. Here are the relevant log statements:</p>
  
  <pre><code>[Container] 2017/01/12 17:21:31 Assembling file list
  [Container] 2017/01/12 17:21:31 Expanding MyApp
  [Container] 2017/01/12 17:21:31 Skipping invalid artifact path MyApp
  [Container] 2017/01/12 17:21:31 Phase complete: UPLOAD_ARTIFACTS Success: false
  [Container] 2017/01/12 17:21:31 Phase context status code: ARTIFACT_ERROR Message: No matching artifact paths found
  [Container] 2017/01/12 17:21:31 Runtime error (No matching artifact paths found)
  </code></pre>
  
  <p>My app has a buildspec.yml in its root folder. It looks like:</p>
  
  <pre><code>version: 0.1
  
  phases:
    build:
      commands:
        - echo `$BUILD_COMMAND`
  
  artifacts:
    discard-paths: yes
    files:
      - MyApp
  </code></pre>
  
  <p>It would appear that the "MyApp" in my buildspec.yml should be something different, but I'm pouring through all of the AWS docs to no avail (what else is new?). How can I get it to upload the artifact correctly?</p>