Correctly define the 'out' directory path

azure-pipelines/build.yml

@@ -110,18 +110,18 @@ extends:
           displayName: Build UWP Managed NuGet package
           inputs:
             solution: src\BehaviorsSDKManaged\Microsoft.Xaml.Interactions.Design\Microsoft.Xaml.Interactions.Design.csproj
-            msbuildArgs: /t:Pack /p:SignType=$(SignType) /p:TimestampPackage=$(TimestampPackage) /p:PackageOutputPath="$(Build.SourcesDirectory)out"
+            msbuildArgs: /t:Pack /p:SignType=$(SignType) /p:TimestampPackage=$(TimestampPackage) /p:PackageOutputPath="$(Build.SourcesDirectory)\out"
             configuration: Release
         - task: VSBuild@1
           displayName: Build WinUI Managed NuGet package
           inputs:
             solution: src\BehaviorsSDKManaged\Microsoft.Xaml.Interactivity.WinUI\Microsoft.Xaml.Interactivity.WinUI.csproj
-            msbuildArgs: /t:Pack /p:SignType=$(SignType) /p:TimestampPackage=$(TimestampPackage) /p:PackageOutputPath="$(Build.SourcesDirectory)out"
+            msbuildArgs: /t:Pack /p:SignType=$(SignType) /p:TimestampPackage=$(TimestampPackage) /p:PackageOutputPath="$(Build.SourcesDirectory)\out"
             configuration: Release
         - task: CopyFiles@2
           displayName: 'Copy Symbols to: $(Pipeline.Workspace)\Symbols'
           inputs:
-            SourceFolder: $(Build.SourcesDirectory)out
+            SourceFolder: $(Build.SourcesDirectory)\out
             Contents: '**\bin\**\*.pdb'
             TargetFolder: $(Pipeline.Workspace)\Symbols
         - task: MicroBuildArchiveSymbols@5
@@ -135,7 +135,7 @@ extends:
         - task: CopyFiles@2
           displayName: 'Copy NuGet Packages to: $(Build.ArtifactStagingDirectory)\Packages'
           inputs:
-            SourceFolder: $(Build.SourcesDirectory)out
+            SourceFolder: $(Build.SourcesDirectory)\out
             Contents: '**\*.nupkg'
             TargetFolder: $(Build.ArtifactStagingDirectory)\Packages
             OverWrite: true

src/BehaviorsSDKManaged/Microsoft.Xaml.Interactions.Design/Microsoft.Xaml.Interactions.Design.csproj

@@ -127,7 +127,7 @@
     -->
   <Target Name="Pack">
     <PropertyGroup>
-      <PackageOutputPath>..\..\..\out\NuGetPackages</PackageOutputPath>
+      <PackageOutputPath Condition=" '$(PackageOutputPath)' == '' ">..\..\..\out\NuGetPackages</PackageOutputPath>
     </PropertyGroup>
     <Exec Command="nuget pack ..\..\..\scripts\Microsoft.Xaml.Behaviors.Uwp.Managed.nuspec -outputDirectory $(PackageOutputPath) -version $(PackageVersion)" />
   </Target>

src/BehaviorsSDKManaged/Microsoft.Xaml.Interactivity.WinUI/Microsoft.Xaml.Interactivity.WinUI.csproj

@@ -186,7 +186,7 @@
     <PackageProjectUrl>http://go.microsoft.com/fwlink/?LinkID=651678</PackageProjectUrl>
     <PackageIconUrl>http://go.microsoft.com/fwlink/?LinkID=708511</PackageIconUrl>
     <NuspecFile>..\..\..\scripts\Microsoft.Xaml.Behaviors.WinUI.Managed.nuspec</NuspecFile>
-    <PackageOutputPath>..\..\..\out\NuGetPackages</PackageOutputPath>
+    <PackageOutputPath Condition=" '$(PackageOutputPath)' == '' ">..\..\..\out\NuGetPackages</PackageOutputPath>
   </PropertyGroup>
   <Import Project="..\Version\NuGetPackageVersion.props" />
   <PropertyGroup Condition=" '$(Configuration)' == 'Release' ">