title: no matching artifact paths found
body: <p>I am planning to build a sample .net mvc application using AWS codebuild.
  But getting an error : <em>no matching artifact paths found</em></p>
  
  <p>buildspec.yml file given below.</p>
  
  <p>what am I missing?
  <a href="https://i.stack.imgur.com/iNIfH.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/iNIfH.png" alt="enter image description here"></a></p>
  
  <pre><code>
  version: 0.2
  
  phases:
    install:
      commands:
        - echo Executing Install Phase
  
    pre_build:
      command:
        - echo Executing Pre Build Phase
        - echo Restore started on `date`
        - echo restore demorepo2.csproj
  
    build:
      command:
        - echo Executing Build Phase
        - echo build started on `date`
        - dotnet publish -c release -o ./build_output demorepo2.csproj 
  
  
    post_build:
      command:
        - echo Executing Post Build Phase
  
  
  artifacts:
      files:
          - ./build_output/**
      name: build-demo2-artifacts
  </code></pre>