fix Dsc build issue

.pipelines/generateDscManifests.ps1

@@ -0,0 +1,88 @@
+[CmdletBinding()]
+param(
+    [Parameter(Mandatory = $true)]
+    [string]$BuildPlatform,
+
+    [Parameter(Mandatory = $true)]
+    [string]$BuildConfiguration,
+
+    [Parameter()]
+    [string]$RepoRoot = (Get-Location).Path
+)
+
+$ErrorActionPreference = 'Stop'
+
+function Resolve-PlatformDirectory {
+    param(
+        [string]$Root,
+        [string]$Platform
+    )
+
+    $normalized = $Platform.Trim()
+    $candidates = @()
+    $candidates += Join-Path $Root $normalized
+    $candidates += Join-Path $Root ($normalized.ToUpperInvariant())
+    $candidates += Join-Path $Root ($normalized.ToLowerInvariant())
+    $candidates = $candidates | Where-Object { -not [string]::IsNullOrWhiteSpace($_) } | Select-Object -Unique
+
+    foreach ($candidate in $candidates) {
+        if (Test-Path $candidate) {
+            return $candidate
+        }
+    }
+
+    return $candidates[0]
+}
+
+Write-Host "Repo root: $RepoRoot"
+Write-Host "Requested build platform: $BuildPlatform"
+Write-Host "Requested configuration: $BuildConfiguration"
+
+# Always use x64 PowerToys.DSC.exe since CI/CD machines are x64
+$exePlatform = 'x64'
+$exeRoot = Resolve-PlatformDirectory -Root $RepoRoot -Platform $exePlatform
+$exeOutputDir = Join-Path $exeRoot $BuildConfiguration
+$exePath = Join-Path $exeOutputDir 'PowerToys.DSC.exe'
+
+Write-Host "Using x64 PowerToys.DSC.exe to generate DSC manifests for $BuildPlatform build"
+
+if (-not (Test-Path $exePath)) {
+    throw "PowerToys.DSC.exe not found at '$exePath'. Make sure it has been built first."
+}
+
+Write-Host "Using PowerToys.DSC.exe at '$exePath'."
+
+# Output DSC manifests to the target build platform directory (x64, ARM64, etc.)
+$outputRoot = Resolve-PlatformDirectory -Root $RepoRoot -Platform $BuildPlatform
+if (-not (Test-Path $outputRoot)) {
+    Write-Host "Creating missing platform output root at '$outputRoot'."
+    New-Item -Path $outputRoot -ItemType Directory -Force | Out-Null
+}
+
+$outputDir = Join-Path $outputRoot $BuildConfiguration
+if (-not (Test-Path $outputDir)) {
+    Write-Host "Creating missing configuration output directory at '$outputDir'."
+    New-Item -Path $outputDir -ItemType Directory -Force | Out-Null
+}
+
+Write-Host "DSC manifests will be generated to: '$outputDir'"
+
+Write-Host "Cleaning previously generated DSC manifest files from '$outputDir'."
+Get-ChildItem -Path $outputDir -Filter 'microsoft.powertoys.*.settings.dsc.resource.json' -ErrorAction SilentlyContinue | Remove-Item -Force
+
+$arguments = @('manifest', '--resource', 'settings', '--outputDir', $outputDir)
+Write-Host "Invoking DSC manifest generator: '$exePath' $($arguments -join ' ')"
+& $exePath @arguments
+if ($LASTEXITCODE -ne 0) {
+    throw "PowerToys.DSC.exe exited with code $LASTEXITCODE"
+}
+
+$generatedFiles = Get-ChildItem -Path $outputDir -Filter 'microsoft.powertoys.*.settings.dsc.resource.json' -ErrorAction Stop
+if ($generatedFiles.Count -eq 0) {
+    throw "No DSC manifest files were generated in '$outputDir'."
+}
+
+Write-Host "Generated $($generatedFiles.Count) DSC manifest file(s):"
+foreach ($file in $generatedFiles) {
+    Write-Host "  - $($file.FullName)"
+}

.pipelines/v2/templates/job-build-project.yml

@@ -263,8 +263,21 @@ jobs:
       env:
         SYSTEM_ACCESSTOKEN: $(System.AccessToken)
 
+  # Build PowerToys.DSC.exe for ARM64 (x64 uses existing binary from previous build)
+  - ${{ if ne(parameters.buildPlatform, 'x64') }}:
+    - task: VSBuild@1
+      displayName: Build PowerToys.DSC.exe (x64 for generating manifests)
+      inputs:
+        solution: src/dsc/v3/PowerToys.DSC/PowerToys.DSC.csproj
+        msbuildArgs: /t:Build /m /restore
+        platform: x64
+        configuration: $(BuildConfiguration)
+        msbuildArchitecture: x64
+        maximumCpuCount: true
+
+  # Generate DSC manifests using PowerToys.DSC.exe
   - pwsh: |-
-      & '.pipelines/generate-dsc-manifests.ps1' -BuildPlatform '$(BuildPlatform)' -BuildConfiguration '$(BuildConfiguration)' -RepoRoot '$(Build.SourcesDirectory)'
+      & '.pipelines/generateDscManifests.ps1' -BuildPlatform '$(BuildPlatform)' -BuildConfiguration '$(BuildConfiguration)' -RepoRoot '$(Build.SourcesDirectory)'
     displayName: Generate DSC manifests
 
   - task: CopyFiles@2

tools/build/build-installer.ps1

@@ -126,7 +126,7 @@ else {
 
 # Generate DSC manifest files
 Write-Host '[DSC] Generating DSC manifest files...'
-$dscScriptPath = Join-Path $repoRoot '.pipelines\generate-dsc-manifests.ps1'
+$dscScriptPath = Join-Path $repoRoot '.\tools\build\generate-dsc-manifests.ps1'
 if (Test-Path $dscScriptPath) {
     & $dscScriptPath -BuildPlatform $Platform -BuildConfiguration $Configuration -RepoRoot $repoRoot
     if ($LASTEXITCODE -ne 0) {