diff --git a/packages/core/package.json b/packages/core/package.json
index 28d9dc70d..2dc6362bf 100644
--- a/packages/core/package.json
+++ b/packages/core/package.json
@@ -40,6 +40,9 @@
     },
     "./_private/react": {
       "default": "./dist/_private/react/index.js"
+    },
+    "./_private/RouteService": {
+      "default": "./dist/_private/RouteService/index.js"
     }
   },
   "main": "./dist/index.js",
diff --git a/packages/core/src/node/route/RoutePage.ts b/packages/core/src/node/route/RoutePage.ts
index 77211f21f..45f871e54 100644
--- a/packages/core/src/node/route/RoutePage.ts
+++ b/packages/core/src/node/route/RoutePage.ts
@@ -74,6 +74,13 @@ function absolutePathToRouteMeta(
 
   const { lang, routePath, version } =
     routeService.normalizeRoutePath(relativePath);
+
+  if (!routeService.isExistRoute(routePath)) {
+    throw new Error(
+      `The routePath "${routePath}" derived from the file "${absolutePath}" does not exist in the route service.`,
+    );
+  }
+
   return {
     pageName: getPageKey(relativePath),
     absolutePath,