diff --git a/examples/llm_hello_world.py b/examples/llm_hello_world.py
index 3ba03eea0..329247afc 100644
--- a/examples/llm_hello_world.py
+++ b/examples/llm_hello_world.py
@@ -4,9 +4,12 @@
 @Time    : 2023/5/6 14:13
 @Author  : alexanderwu
 @File    : llm_hello_world.py
+@Modified By: mashenquan, 2023-8-9, fix-bug: cannot find metagpt module.
 """
 import asyncio
-
+from pathlib import Path
+import sys
+sys.path.append(str(Path(__file__).resolve().parent.parent))
 from metagpt.llm import LLM, Claude
 from metagpt.logs import logger
 
diff --git a/examples/search_google.py b/examples/search_google.py
index 9e9521b9c..df45c29ea 100644
--- a/examples/search_google.py
+++ b/examples/search_google.py
@@ -4,10 +4,13 @@
 @Time    : 2023/5/7 18:32
 @Author  : alexanderwu
 @File    : search_google.py
+@Modified By: mashenquan, 2023-8-9, fix-bug: cannot find metagpt module.
 """
 
 import asyncio
-
+from pathlib import Path
+import sys
+sys.path.append(str(Path(__file__).resolve().parent.parent))
 from metagpt.roles import Searcher
 
 
diff --git a/examples/search_kb.py b/examples/search_kb.py
index b6f7d87a0..449099380 100644
--- a/examples/search_kb.py
+++ b/examples/search_kb.py
@@ -2,9 +2,12 @@
 # -*- coding: utf-8 -*-
 """
 @File    : search_kb.py
+@Modified By: mashenquan, 2023-8-9, fix-bug: cannot find metagpt module.
 """
 import asyncio
-
+from pathlib import Path
+import sys
+sys.path.append(str(Path(__file__).resolve().parent.parent))
 from metagpt.const import DATA_PATH
 from metagpt.document_store import FaissStore
 from metagpt.logs import logger
diff --git a/examples/search_with_specific_engine.py b/examples/search_with_specific_engine.py
index 7cc431cd4..4423011e4 100644
--- a/examples/search_with_specific_engine.py
+++ b/examples/search_with_specific_engine.py
@@ -1,5 +1,12 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+"""
+@Modified By: mashenquan, 2023-8-9, fix-bug: cannot find metagpt module.
+"""
 import asyncio
-
+from pathlib import Path
+import sys
+sys.path.append(str(Path(__file__).resolve().parent.parent))
 from metagpt.roles import Searcher
 from metagpt.tools import SearchEngineType
 
diff --git a/examples/write_teaching_plan.py b/examples/write_teaching_plan.py
index 86125f090..5ab7d3ab5 100644
--- a/examples/write_teaching_plan.py
+++ b/examples/write_teaching_plan.py
@@ -1,11 +1,15 @@
 #!/usr/bin/env python
 # -*- coding: utf-8 -*-
 """
-@Modified By: mashenquan, 2023-07-27, + `industry` concept
+@Modified By: mashenquan, 2023-07-27, + write teaching plan flow demo
+
 """
 
 import asyncio
 from pathlib import Path
+import sys
+
+sys.path.append(str(Path(__file__).resolve().parent.parent))
 import aiofiles
 import fire
 from metagpt.logs import logger