From 976c1652cef8670edc9b43f26640d6c3473f6a73 Mon Sep 17 00:00:00 2001
From: Robbe Derks <robbe.derks@gmail.com>
Date: Mon, 14 Feb 2022 15:55:27 +0100
Subject: [PATCH] fix setting comment on undefined msgs (#78)

---
 src/models/can/dbc.js | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/models/can/dbc.js b/src/models/can/dbc.js
index 0c295eb..9bca846 100644
--- a/src/models/can/dbc.js
+++ b/src/models/can/dbc.js
@@ -450,6 +450,12 @@ export default class DBC {
         let [messageId, comment] = matches.slice(1);
         messageId = parseInt(messageId, 10);
         const msg = messages.get(messageId);
+        if (msg === undefined) {
+          warnings.push(
+            `failed to find message to add comment to, msg id: ${messageId}`
+          );
+          continue;
+        }
         msg.comment = comment;
 
         if (hasFollowUp) {