From 28b302752272fe33fe612c69a8e27fa1e09ef9ea Mon Sep 17 00:00:00 2001
From: Bill Schnurr <bschnurr@microsoft.com>
Date: Fri, 6 Dec 2024 12:06:59 -0800
Subject: [PATCH] add a guard around rootpath. (#8088)

this spot was missed last time.

also update debugpy
---
 .../PythonTools/LanguageServerClient/PythonLanguageClient.cs    | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Python/Product/PythonTools/PythonTools/LanguageServerClient/PythonLanguageClient.cs b/Python/Product/PythonTools/PythonTools/LanguageServerClient/PythonLanguageClient.cs
index 023b24ee37..b9d3727bd3 100644
--- a/Python/Product/PythonTools/PythonTools/LanguageServerClient/PythonLanguageClient.cs
+++ b/Python/Product/PythonTools/PythonTools/LanguageServerClient/PythonLanguageClient.cs
@@ -524,7 +524,7 @@ private void WatchedFilesRegistered(object sender, DidChangeWatchedFilesRegistra
         private void UpdateInterpreterExcludes() {
             this._clientContexts.ForEach(context => {
 
-                if (PathUtils.IsSubpathOf(context.RootPath, context.InterpreterConfiguration.InterpreterPath)) {
+                if (context.RootPath != null && PathUtils.IsSubpathOf(context.RootPath, context.InterpreterConfiguration.InterpreterPath)) {
                     var pattern = CommonUtils.GetRelativeFilePath(context.RootPath, context.InterpreterConfiguration.GetPrefixPath()).TrimEnd('\\') + "/**/*";
                     var watcher = new FileSystemWatcher() { GlobPattern = pattern };
                     this._fileListener.AddExclude(watcher);