diff --git a/rdagent/components/benchmark/eval_method.py b/rdagent/components/benchmark/eval_method.py
index c94a0e3e4..3bf998b6d 100644
--- a/rdagent/components/benchmark/eval_method.py
+++ b/rdagent/components/benchmark/eval_method.py
@@ -104,7 +104,7 @@ def eval_case(
             try:
                 eval_res.append((ev, ev.evaluate(implementation=case_gen, gt_implementation=case_gt)))
                 # if the corr ev is successfully evaluated and achieve the best performance, then break
-            except CoderError as e:
+            except (CoderError, AttributeError) as e:
                 return e
             except Exception as e:
                 # exception when evaluation
diff --git a/rdagent/scenarios/qlib/factor_experiment_loader/json_loader.py b/rdagent/scenarios/qlib/factor_experiment_loader/json_loader.py
index 5f080f80e..5e04a0d4b 100644
--- a/rdagent/scenarios/qlib/factor_experiment_loader/json_loader.py
+++ b/rdagent/scenarios/qlib/factor_experiment_loader/json_loader.py
@@ -55,10 +55,9 @@ def load(self, json_file_path: Path) -> list:
                 factor_formulation=factor_data["formulation"],
                 variables=factor_data["variables"],
             )
-            gt = FactorFBWorkspace(task)
+            gt = FactorFBWorkspace(task, raise_exception=True)
             code = {"factor.py": factor_data["gt_code"]}
             gt.inject_code(**code)
-            gt.execute()
             TestData.target_task.sub_tasks.append(task)
             TestData.ground_truth.append(gt)