From a2fbff9f72eb9440961b0353d15e4928769910b5 Mon Sep 17 00:00:00 2001
From: bdovaz <iam.n3uro@gmail.com>
Date: Sat, 27 Sep 2025 15:46:47 +0200
Subject: [PATCH] fix: handle NRE

---
 .../ManagedReference/Visitors/SymbolVisitorAdapter.cs       | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/Docfx.Dotnet/ManagedReference/Visitors/SymbolVisitorAdapter.cs b/src/Docfx.Dotnet/ManagedReference/Visitors/SymbolVisitorAdapter.cs
index 771bc40a11a..d32cea12e2f 100644
--- a/src/Docfx.Dotnet/ManagedReference/Visitors/SymbolVisitorAdapter.cs
+++ b/src/Docfx.Dotnet/ManagedReference/Visitors/SymbolVisitorAdapter.cs
@@ -731,6 +731,12 @@ string ResolveCode(string source)
                     ? Path.GetDirectoryName(Path.GetFullPath(Path.Combine(EnvironmentContext.BaseDirectory, sourcePath)))
                     : null);
 
+            if (basePath == null)
+            {
+                Logger.LogWarning($"Source file '{source}' not found.", code: "CodeNotFound");
+                return null;
+            }
+
             var path = Path.GetFullPath(Path.Combine(basePath, source));
             if (!File.Exists(path))
             {