From 98d1729889a2668f8ad96419af3112d57a079bb0 Mon Sep 17 00:00:00 2001
From: "Brett V. Forsgren" <brettfo@microsoft.com>
Date: Wed, 20 May 2026 14:14:36 -0600
Subject: [PATCH] raise generic error without path information

---
 .../NuGetUpdater.Core/Discover/SdkProjectDiscovery.cs        | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/nuget/helpers/lib/NuGetUpdater/NuGetUpdater.Core/Discover/SdkProjectDiscovery.cs b/nuget/helpers/lib/NuGetUpdater/NuGetUpdater.Core/Discover/SdkProjectDiscovery.cs
index 8156396d3f9..fdb8097d6da 100644
--- a/nuget/helpers/lib/NuGetUpdater/NuGetUpdater.Core/Discover/SdkProjectDiscovery.cs
+++ b/nuget/helpers/lib/NuGetUpdater/NuGetUpdater.Core/Discover/SdkProjectDiscovery.cs
@@ -213,6 +213,11 @@ public static async Task<ImmutableArray<ProjectDiscoveryResult>> DiscoverAsync(s
                     logger.Warn($"  Error determining dependencies from `{startingProjectPath}`:\nSTDOUT:\n{stdOut}\nSTDERR:\n{stdErr}");
                 }
 
+                if (!File.Exists(binLogPath))
+                {
+                    throw new FileNotFoundException("Dependency discovery didn't produce a log file.");
+                }
+
                 var buildRoot = BinaryLog.ReadBuild(binLogPath);
                 buildRoot.VisitAllChildren<BaseNode>(node =>
                 {