diff --git a/src/models/recipev2.rs b/src/models/recipev2.rs
index f6d78c1..f37645a 100644
--- a/src/models/recipev2.rs
+++ b/src/models/recipev2.rs
@@ -182,6 +182,12 @@ pub fn build_recipe_shardings(source: PathBuf) -> HashMap<String, Value> {
     // { productCode: { version: [ Option<RecipeChange> ] } }
     let mut shards = HashMap::new();
 
+    if recipes.is_empty() {
+        eprintln!("recipes get empty!!!");
+    } else {
+        println!("recipes cnt = {}", recipes.len());
+    }
+
     println!(
         "first version from sorted = {:?}",
         recipes.first().unwrap().MachineSetting