add err hint

.gitignore

@@ -157,7 +157,6 @@ cython_debug/
 #  be found at https://github.com/github/gitignore/blob/main/Global/JetBrains.gitignore
 #  and can be added to the global gitignore or merged into this file.  For a more nuclear
 #  option (not recommended) you can uncomment the following to ignore the entire idea folder.
-# The ".idea" folder can generally be ignored directly.
 .idea/
 
 # custom .gitignore

src/llmtuner/webui/common.py

@@ -89,12 +89,12 @@ def list_checkpoint(model_name: str, finetuning_type: str) -> Dict[str, Any]:
     return gr.update(value=[], choices=checkpoints)
 
 
-def load_dataset_info(dataset_dir: str) -> Dict[str, Any]:
+def load_dataset_info(dataset_dir: str) -> Dict[str, Dict[str, Any]]:
     try:
         with open(os.path.join(dataset_dir, DATA_CONFIG), "r", encoding="utf-8") as f:
             return json.load(f)
-    except:
-        print("Cannot find {} in {}.".format(DATA_CONFIG, dataset_dir))
+    except Exception as err:
+        print("Cannot open {} in {} due to {}.".format(DATA_CONFIG, dataset_dir, str(err)))
         return {}