Update app.py

app.py

@@ -51,7 +51,7 @@ def convert_and_push(radio_model_names, input_model, ckpt_name, token, path_in_r
         ckpt_path, revision = hf_utils.download_file(repo_id=model_id, filename=ckpt_name, token=token)
 
         # 2. Run the conversion script
-        os.makedirs(model_id)
+        os.makedirs(model_id, exist_ok=True)
         subprocess.run(
             [
                 "python3",