From 75f6828d71030680b3a02abbc63f50015d1a3900 Mon Sep 17 00:00:00 2001
From: bschnurr <bschnurr@microsoft.com>
Date: Fri, 16 Jan 2026 13:52:01 -0800
Subject: [PATCH] clean Microbuild plugins temp dir

---
 build/templates/sign.yml | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/build/templates/sign.yml b/build/templates/sign.yml
index a5201dbb..83948576 100644
--- a/build/templates/sign.yml
+++ b/build/templates/sign.yml
@@ -82,6 +82,19 @@ steps:
       command: ci
       workingDir: '$(Build.SourcesDirectory)'
 
+  # Workaround for intermittent MicroBuild plugin install collisions
+  # (e.g. "An item with the specified name ...\\MicroBuild\\Plugins\\Az.Accounts already exists")
+  - powershell: |
+      $pluginsRoot = "$(Agent.TempDirectory)/MicroBuild/Plugins"
+      $azAccountsDir = Join-Path $pluginsRoot "Az.Accounts"
+
+      Write-Host "MicroBuild plugins root: $pluginsRoot"
+      if (Test-Path $azAccountsDir) {
+        Write-Host "Removing existing MicroBuild plugin directory: $azAccountsDir"
+        Remove-Item -LiteralPath $azAccountsDir -Recurse -Force -ErrorAction SilentlyContinue
+      }
+    displayName: '🧹 Clean MicroBuild Az.Accounts plugin cache'
+
   # ✅ Enable MicroBuildSigningPlugin for PME enforcement (once for all platforms)
   - task: MicroBuildSigningPlugin@4
     displayName: Enable MicroBuild Signing