try fix the build

Author: dangfan

example/pubspec.lock

@@ -92,7 +92,7 @@ packages:
       path: ".."
       relative: true
     source: path
-    version: "3.6.0-rc.5"
+    version: "3.6.0-rc.4"
   flutter_test:
     dependency: "direct dev"
     description: flutter