DelaySign boolean variable is used to see if we need to sign or not,.

build.ps1

@@ -32,7 +32,7 @@ param
     [string]$AppInsightsKey = "",
 
     # DelaySign
-    [switch]$DelaySign
+    [bool]$DelaySign
 )
 
 $presentWorkingDirectory= Get-Location
@@ -53,12 +53,6 @@ if ($Target -eq "rebuild") {
     $buildTarget = "clean"
 }
 
-$DelaySignString = 'false'
-if($DelaySign)
-{
-    $DelaySignString = 'DelaySign'
-}
-
 if($MSBuildFullPath -ne "")
 {
     if (!(Test-Path $MSBuildFullPath))
@@ -147,6 +141,7 @@ if($CreateNugetPackageOnly)
         "/property:RequestedVerbosity=$verbosity",
         "/property:Configuration=$configuration",
         "/property:RestoreConfigFile=$nugetConfigFilePath",
+        "/property:DelaySign=$DelaySign",
         $args)
     & $msbuildFullPath $msbuildArgs
 }
@@ -179,7 +174,8 @@ else {
         "/property:Configuration=$configuration",
         "/property:RestoreConfigFile=$nugetConfigFilePath",
         "/property:AppInsightsKey=$AppInsightsKey",
-        "/p:RestorePackagesPath=$packagesDirectory",
+        "/property:RestorePackagesPath=$packagesDirectory",
+        "/property:DelaySign=$DelaySign",
         $args)
     & $msbuildFullPath $msbuildArgs
 }

src/properties/common.props

@@ -36,7 +36,7 @@
   </PropertyGroup>
 
   <!-- Enable delay signing with Key.snk -->
-  <PropertyGroup Condition="'$(Configuration)' == 'Release'">
+  <PropertyGroup Condition="'$(DelaySign)' == 'true'">
     <SignAssembly>true</SignAssembly>
     <DelaySign>true</DelaySign>
     <AssemblyOriginatorKeyFile>$(SrcRoot)/properties/Key.snk</AssemblyOriginatorKeyFile>