From 0bc949bc24937b4eba3cb9ec4f017cf57a3d2361 Mon Sep 17 00:00:00 2001
From: que01 <que01@foxmail.com>
Date: Tue, 18 Aug 2026 14:29:13 +0800
Subject: [PATCH] fix: clear stale legacy preview route

---
 scripts/build-area.js | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/scripts/build-area.js b/scripts/build-area.js
index 3dde72d..fac8cea 100755
--- a/scripts/build-area.js
+++ b/scripts/build-area.js
@@ -584,7 +584,12 @@ function writeCesiumPreview(area, roadProvider) {
   const started = Date.now();
   const startedAt = new Date(started).toISOString();
   fs.mkdirSync(path.dirname(htmlPath), { recursive: true });
-  if (vehicleRoute) writeVehicleRoute(area, vehicleRoute);
+  if (vehicleRoute) {
+    writeVehicleRoute(area, vehicleRoute);
+  } else {
+    // Do not let a route from an earlier legacy preview survive into native output.
+    fs.rmSync(area.outputs.vehicleRoute, { force: true });
+  }
   const vehicleModelNames = writeVehicleModel(area);
   writeCesiumPreviewSupportFiles(path.dirname(htmlPath));
   const glbName = "package/manifest.json";