msbuild based installer generation is not working in appveyor, not sure why

Deploy/squirrel_installer.ps1

@@ -0,0 +1,17 @@
+# msbuild based installer generation is not working in appveyor, not sure why
+
+$currentPath = Convert-Path .
+Write-Host "Current path: " + $currentPath
+
+$path = $env:APPVEYOR_BUILD_FOLDER + "\Deploy\wox.nuspec"
+Write-Host "nuspec path: " + $path
+& nuget.exe pack $path -Version $env:APPVEYOR_BUILD_VERSION -Properties Configuration=Release
+
+$nupkgPath = $env:APPVEYOR_BUILD_FOLDER + "\Wox." + $env:APPVEYOR_BUILD_VERSION + ".nupkg"
+Write-Host "nupkg path: " + $nupkgPath
+
+# must use Squirrel.com, Squirrel.exe will produce nothing 
+$squirrelPath = $env:APPVEYOR_BUILD_FOLDER + "\packages\squirrel*\tools\Squirrel.com"
+Write-Host "squirrel path: " + $squirrelPath
+$iconPath = $env:APPVEYOR_BUILD_FOLDER + "\Wox\Resources\app.ico"
+& $squirrelPath --releasify $nupkgPath --setupIcon $iconPath --no-msi

appveyor.yml

@@ -17,10 +17,15 @@ after_test:
     .\Deploy\nuget.ps1
     
     .\Deploy\binary_zip.ps1
+        
+    .\Deploy\squirrel_installer.ps1
 artifacts:
 - path: 'Wox-*.zip'
   name: zipped_binary
 - path: '*.nupkg'
   name: nuget_package
-- path: '\Output\Releases\Installer\*.*'
+- path: '\Releases\*.exe'
-  name: installer
+  name: installer
+- path: '\Releases\*.nupkg'
+  name: installer
+- path: 'Releases\RELEASES'