diff --git a/appbuilder/core/components/text_to_image/component.py b/appbuilder/core/components/text_to_image/component.py
index 42b8525a9..1824b9bc6 100644
--- a/appbuilder/core/components/text_to_image/component.py
+++ b/appbuilder/core/components/text_to_image/component.py
@@ -203,7 +203,7 @@ def tool_eval(
                 'text': result.content['img_urls'][0],
             }
         except Exception as e:
-            result = f'绘图时发生错误：{e}'
+            raise AppBuilderServerException(f'绘图时发生错误：{e}')
         if streaming:
             yield result
         else: