From f97cebe3f829aaa9ec2f6d62bea77328b0456ea3 Mon Sep 17 00:00:00 2001
From: Austin Mroz <AustinMroz@utexas.edu>
Date: Tue, 17 Mar 2026 09:55:11 -0700
Subject: [PATCH] Display error if duplicate install detected

Detection may not be the most reliable if one of the duplicates is not
seeing updates and happens to install first. I'll keep pondering a more
reliable way to do this. The only ideas that come to mind are a little
too hacky and unsafe for my current standards.
---
 web/js/VHS.core.js | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/web/js/VHS.core.js b/web/js/VHS.core.js
index 00f3941..bb0db08 100755
--- a/web/js/VHS.core.js
+++ b/web/js/VHS.core.js
@@ -171,6 +171,11 @@ var helpDOM = app.VHSHelp;
 if (!app.VHSHelp) {
     helpDOM = document.createElement("div");
     app.VHSHelp = helpDOM
+} else {
+    app.extensionManager.dialog
+      .showErrorDialog('Please check your custom_nodes directory and manually remove the duplicate.',
+                       { title: 'Duplicate VHS install detected' })
+    throw new Error('Duplicate VHS install detected. Check your custom_nodes directory')
 }
 function initHelpDOM() {
     let parentDOM = document.createElement("div");