From 801ddc59f87452c46dfc52add31ee07319278b7d Mon Sep 17 00:00:00 2001
From: James Turner <zakalawe@mac.com>
Date: Thu, 29 Oct 2020 16:19:45 +0000
Subject: [PATCH] Fix for missing 2D panel

Should be back-ported to 2020.3

Sentry-Id: FLIGHTGEAR-5X
---
 src/Cockpit/panel_io.cxx | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/src/Cockpit/panel_io.cxx b/src/Cockpit/panel_io.cxx
index cb12f5a7d..89134aec3 100644
--- a/src/Cockpit/panel_io.cxx
+++ b/src/Cockpit/panel_io.cxx
@@ -842,7 +842,13 @@ fgReadPanel (const string &relative_path)
 {
   SGPath path = globals->resolve_aircraft_path(relative_path);
   SGPropertyNode root;
-  
+
+  if (!path.exists()) {
+      auto msg = string{"Missing panel file: "} + relative_path;
+      guiErrorMessage(msg.c_str());
+      return nullptr;
+  }
+
   try {
     readProperties(path, &root);
   } catch (const sg_exception &e) {