C#

 # ASP.NET Core
 # Build and test ASP.NET Core projects targeting .NET Core.
 # Add steps that run tests, create a NuGet package, deploy, and more:
 # https://docs.microsoft.com/azure/devops/pipelines/languages/dotnet-core

 trigger:
 - master

 pool:
   vmImage: 'Ubuntu-16.04'

 variables:
   buildConfiguration: 'Release'

 steps:
 # - script: dotnet build --configuration $(buildConfiguration)
 #   displayName: 'dotnet build $(buildConfiguration)'

 \- task: DotNetCoreInstaller@0
   inputs:
     version: '2.2.202' # replace this value with the version that you need for your project

 \- script: dotnet restore

 \- task: DotNetCoreCLI@2
   displayName: Build
   inputs:
     command: build
     projects: '**/*.csproj'
     arguments: '--configuration Release' # Update this to match your need

 # do this after you've built your app, near the end of your pipeline in most cases
 # for example, you do this before you deploy to an Azure web app on Windows
 \- task: DotNetCoreCLI@2
   inputs:
     command: publish
     publishWebProjects: True
     arguments: '--configuration $(BuildConfiguration) --output $(Build.ArtifactStagingDirectory)'
     zipAfterPublish: True

 # - task: PublishBuildArtifacts@1
 #   inputs:
 #     ArtifactName: 'drop'

<h1>##[section]Starting: DotNetCoreCLI</h1>

Task         : .NET Core
Description  : Build, test, package, or publish a dotnet application, or run a custom dotnet command. For package commands, supports NuGet.org and authenticated feeds like Package Management and MyGet.
Version      : 2.150.1
Author       : Microsoft Corporation
<h1>Help         : <a href="https://go.microsoft.com/fwlink/?linkid=832194">More Information</a></h1>

 ##[error]No web project was found in the repository. Web projects are identified by presence of either a web.config file or wwwroot folder in the directory.
 ##[error]Project file(s) matching the specified pattern were not found.
 ##[section]Finishing: DotNetCoreCLI</pre>