try fix

shell/platform/darwin/common/framework/Source/FlutterNSBundleUtils.mm

@@ -71,11 +71,11 @@
   // Use the raw path solution so that asset path can be returned from unloaded bundles.
   // See https://github.com/flutter/engine/pull/46073
   NSString* assetsPath = [bundle pathForResource:flutterAssetsPath ofType:nil];
-  if (assetsPath.length == 0) {
-    // In app extension, using full relative path (kDefaultAssetPath)
-    // returns nil when the app bundle is not loaded. Try to use
-    // the sub folder name, which can successfully return a valid path.
-    assetsPath = [bundle pathForResource:@"flutter_assets" ofType:nil];
-  }
+  // if (assetsPath.length == 0) {
+  //   // In app extension, using full relative path (kDefaultAssetPath)
+  //   // returns nil when the app bundle is not loaded. Try to use
+  //   // the sub folder name, which can successfully return a valid path.
+  //   assetsPath = [bundle pathForResource:@"flutter_assets" ofType:nil];
+  // }
   return assetsPath;
 }