From 914fa408a41c027d208cbaf070894683eac38690 Mon Sep 17 00:00:00 2001
From: Xiaogang <xidi@microsoft.com>
Date: Wed, 9 Jun 2021 13:12:23 +0800
Subject: [PATCH] should not try to use existed module version for new modules
 (#15217)

---
 tools/Gen2Master/MoveFromGeneration2Master.ps1 | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/tools/Gen2Master/MoveFromGeneration2Master.ps1 b/tools/Gen2Master/MoveFromGeneration2Master.ps1
index 06c809f9409f..724d1f561c98 100644
--- a/tools/Gen2Master/MoveFromGeneration2Master.ps1
+++ b/tools/Gen2Master/MoveFromGeneration2Master.ps1
@@ -64,7 +64,9 @@ Function Move-Generation2Master {
             $Psd1Version = $Psd1Metadata.ModuleVersion
         }
         $Psd1Metadata = Import-LocalizedData -BaseDirectory $SourcePath -FileName "Az.$ModuleName.psd1"
-        $Psd1Metadata.ModuleVersion = $Psd1Version
+        if ($Null -ne $Psd1Version) {
+            $Psd1Metadata.ModuleVersion = $Psd1Version
+        }
         If ($Null -ne $ModuleGuid) {
             $Psd1Metadata.GUID = $ModuleGuid
         }