From ac305b369daf86b6e1a731756a705454fc393335 Mon Sep 17 00:00:00 2001
From: Ari Vuollet <ari.vuollet@goat.moe>
Date: Thu, 10 Apr 2025 18:18:56 +0300
Subject: [PATCH] Fix .NET SDK detection when only the runtime is installed

---
 Source/Tools/Flax.Build/Build/DotNet/DotNetSdk.cs | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/Source/Tools/Flax.Build/Build/DotNet/DotNetSdk.cs b/Source/Tools/Flax.Build/Build/DotNet/DotNetSdk.cs
index 7d4866bf8..2981a2b70 100644
--- a/Source/Tools/Flax.Build/Build/DotNet/DotNetSdk.cs
+++ b/Source/Tools/Flax.Build/Build/DotNet/DotNetSdk.cs
@@ -235,8 +235,8 @@ namespace Flax.Build
                 ridFallback = "";
                 if (string.IsNullOrEmpty(dotnetPath))
                 {
-                    dotnetPath = "/usr/local/share/dotnet/";
-                    if (!Directory.Exists(dotnetPath)) // Officially recommended dotnet location
+                    dotnetPath = "/usr/local/share/dotnet/"; // Officially recommended dotnet location
+                    if (!Directory.Exists(dotnetPath))
                     {
                         if (Environment.GetEnvironmentVariable("PATH") is string globalBinPath)
                             dotnetPath = globalBinPath.Split(':').FirstOrDefault(x => File.Exists(Path.Combine(x, "dotnet")));
@@ -261,7 +261,7 @@ namespace Flax.Build
                 Log.Warning("Missing .NET SDK");
                 return;
             }
-            if (!Directory.Exists(dotnetPath))
+            if (!Directory.Exists(Path.Combine(dotnetPath, "sdk")))
             {
                 Log.Warning($"Missing .NET SDK ({dotnetPath})");
                 return;
@@ -513,6 +513,8 @@ namespace Flax.Build
 
         private static IEnumerable<string> GetVersions(string folder)
         {
+            if (!Directory.Exists(folder))
+                return Enumerable.Empty<string>();
             return Directory.GetDirectories(folder).Select(Path.GetFileName);
         }