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:

```
[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)

```

My app has a buildspec.yml in its root folder. It looks like:

```
version: 0.1

phases:
  build:
    commands:
      - echo `$BUILD_COMMAND`

artifacts:
  discard-paths: yes
  files:
    - MyApp

```

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?