Set up automated builds for your UWP app

You can use Azure Pipelines to create automated builds for UWP projects. In this article, we’ll look at different ways to do this. We’ll also show you how to perform these tasks by using the command line so that you can integrate with any other build system.

Create a new Azure Pipeline

Begin by signing up for Azure Pipelines if you haven't done so already.

Next, create a pipeline that you can use to build your source code. For a tutorial about building a pipeline to build a GitHub repository, see Create your first pipeline. Azure Pipelines supports the repository types listed in this article.

Set up an automated build

We’ll start with the default UWP build definition that’s available in Azure Dev Ops and then show you how to configure the pipeline.

In the list of build definition templates, choose the Universal Windows Platform template.

Select the UWP template

This template includes the basic configuration to build your UWP project:

- master

  vmImage: 'VS2017-Win2016'

  solution: '**/*.sln'
  buildPlatform: 'x86|x64|ARM'
  buildConfiguration: 'Release'
  appxPackageDir: '$(build.artifactStagingDirectory)\AppxPackages\\'

- task: NuGetToolInstaller@0

- task: NuGetCommand@2
    restoreSolution: '$(solution)'

- task: VSBuild@1
    platform: 'x86'
    solution: '$(solution)'
    configuration: '$(buildConfiguration)'
    msbuildArgs: '/p:AppxBundlePlatforms="$(buildPlatform)" /p:AppxPackageDir="$(appxPackageDir)" /p:AppxBundle=Always /p:UapAppxPackageBuildMode=StoreUpload'

The default template tries to sign the package with the certificate specified in the .csproj file. If you want to sign your package during the build you must have access to the private key. Otherwise, you can disable signing by adding the parameter /p:AppxPackageSigningEnabled=false to the msbuildArgs section in the YAML file.

Add your project certificate to a repository

Pipelines works with both Azure Repos Git and TFVC repositories. If you use a Git repository, add the certificate file of your project to the repository so that the build agent can sign the app package. If you don’t do this, the Git repository will ignore the certificate file. To add the certificate file to your repository, right-click the certificate file in Solution Explorer, and then in the shortcut menu, choose the Add Ignored File to Source Control command.

how to include a certificate

Configure the Build solution build task

This task compiles any solution that’s in the working folder to binaries and produces the output app package file. This task uses MSBuild arguments. You’ll have to specify the value of those arguments. Use the following table as a guide.

MSBuild argument Value Description
AppxPackageDir $(Build.ArtifactStagingDirectory)\AppxPackages Defines the folder to store the generated artifacts.
AppxBundlePlatforms $(Build.BuildPlatform) Enables you to define the platforms to include in the bundle.
AppxBundle Always Creates an .msixbundle/.appxbundle with the .msix/.appx files for the platform specified.
UapAppxPackageBuildMode StoreUpload Generates the .msixupload/.appxupload file and the _Test folder for sideloading.
UapAppxPackageBuildMode CI Generates the .msixupload/.appxupload file only.
UapAppxPackageBuildMode SideloadOnly Generates the _Test folder for sideloading only

If you want to build your solution by using the command line, or by using any other build system, run MSBuild with these arguments.


The parameters defined with the $() syntax are variables defined in the build definition, and will change in other build systems.

default variables

To view all predefined variables, see Predefined build variables.

Configure the Publish Build Artifacts task

The default UWP pipeline does not save the generated artifacts. To add the publish capabilities to your YAML definition, add the following tasks.

- task: CopyFiles@2
  displayName: 'Copy Files to: $(build.artifactstagingdirectory)'
    SourceFolder: '$(system.defaultworkingdirectory)'
    Contents: '**\bin\$(BuildConfiguration)\**'
    TargetFolder: '$(build.artifactstagingdirectory)'

- task: PublishBuildArtifacts@1
  displayName: 'Publish Artifact: drop'
    PathtoPublish: '$(build.artifactstagingdirectory)'

You can see the generated artifacts in the Artifacts option of the build results page.


Because we’ve set the UapAppxPackageBuildMode argument to StoreUpload, the artifacts folder includes the package for submission to the Store (.msixupload/.appxupload). Note that you can also submit a regular app pacakge (.msix/.appx) or an app bundle (.msixbundle/.appxbundle/) to the Store. For the purposes of this article, we'll use the .appxupload file.

Address bundle errors

If you add more than one UWP project to your solution and then try to create a bundle, you might receive an error like this one.

MakeAppx(0,0): Error : Error info: error 80080204: The package with file name "AppOne.UnitTests_0.1.2595.0_x86.appx" and package full name "8ef641d1-4557-4e33-957f-6895b122f1e6_0.1.2595.0_x86__scrj5wvaadcy6" is not valid in the bundle because it has a different package family name than other packages in the bundle

This error appears because at the solution level, it’s not clear which app should appear in the bundle. To resolve this issue, open each project file and add the following properties at the end of the first <PropertyGroup> element.

Project Properties
App <AppxBundle>Always</AppxBundle>
UnitTests <AppxBundle>Never</AppxBundle>

Then, remove the AppxBundle MSBuild argument from the build step.