From a9450f9ed9d00ecef9b33043898e2f8211dac824 Mon Sep 17 00:00:00 2001
From: Bjarke Berg <mail@bergmania.dk>
Date: Fri, 22 Feb 2019 11:02:37 +0100
Subject: [PATCH] Fix NullReferenceException when using LocalDb, because
 `SqlServerSyntaxProvider.ServerVersion` can be `null`

---
 src/Umbraco.Web/Install/InstallHelper.cs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/Umbraco.Web/Install/InstallHelper.cs b/src/Umbraco.Web/Install/InstallHelper.cs
index effb46c9b7..42da49aa39 100644
--- a/src/Umbraco.Web/Install/InstallHelper.cs
+++ b/src/Umbraco.Web/Install/InstallHelper.cs
@@ -101,7 +101,7 @@ namespace Umbraco.Web.Install
             if (syntax is SqlCeSyntaxProvider)
                 dbProvider = "SqlServerCE";
             else if (syntax is SqlServerSyntaxProvider)
-                dbProvider = (syntax as SqlServerSyntaxProvider).ServerVersion.IsAzure ? "SqlAzure" : "SqlServer";
+                dbProvider = (syntax as SqlServerSyntaxProvider).ServerVersion?.IsAzure == true ? "SqlAzure" : "SqlServer";
 
             return dbProvider;
         }