diff --git a/examples/andriod_assistant/requirements.txt b/examples/andriod_assistant/requirements.txt
index e879bece5..ec86cd815 100644
--- a/examples/andriod_assistant/requirements.txt
+++ b/examples/andriod_assistant/requirements.txt
@@ -1 +1 @@
-pyshine==0.0.9
\ No newline at end of file
+pyshine==0.0.9
diff --git a/metagpt/actions/action_node.py b/metagpt/actions/action_node.py
index 52315d8b5..6240dafe7 100644
--- a/metagpt/actions/action_node.py
+++ b/metagpt/actions/action_node.py
@@ -460,7 +460,6 @@ class ActionNode:
             self.instruct_content = scontent
         else:
             self.content = await self.llm.aask(prompt)
-            logger.info(self.content)
             self.instruct_content = None
 
         return self
diff --git a/metagpt/environment/api/read_api.py b/metagpt/environment/api/read_api.py
deleted file mode 100644
index 7b0076ce7..000000000
--- a/metagpt/environment/api/read_api.py
+++ /dev/null
@@ -1,3 +0,0 @@
-#!/usr/bin/env python
-# -*- coding: utf-8 -*-
-# @Desc   : the readable api/interface abstraction to integrate with environment
diff --git a/metagpt/environment/api/write_api.py b/metagpt/environment/api/write_api.py
deleted file mode 100644
index de6665592..000000000
--- a/metagpt/environment/api/write_api.py
+++ /dev/null
@@ -1,3 +0,0 @@
-#!/usr/bin/env python
-# -*- coding: utf-8 -*-
-# @Desc   : the writable api/interface abstraction to integrate with environment
diff --git a/metagpt/environment/gym_env/__init__.py b/metagpt/environment/gym_env/__init__.py
deleted file mode 100644
index 2bcf8efd0..000000000
--- a/metagpt/environment/gym_env/__init__.py
+++ /dev/null
@@ -1,3 +0,0 @@
-#!/usr/bin/env python
-# -*- coding: utf-8 -*-
-# @Desc   :
diff --git a/metagpt/environment/gym_env/gym_env.py b/metagpt/environment/gym_env/gym_env.py
deleted file mode 100644
index b83d988d6..000000000
--- a/metagpt/environment/gym_env/gym_env.py
+++ /dev/null
@@ -1,7 +0,0 @@
-#!/usr/bin/env python
-# -*- coding: utf-8 -*-
-# @Desc   : MG Gym Env
-
-
-class GymEnv:
-    pass
diff --git a/tests/metagpt/environment/gym_env/__init__.py b/tests/metagpt/environment/gym_env/__init__.py
deleted file mode 100644
index 2bcf8efd0..000000000
--- a/tests/metagpt/environment/gym_env/__init__.py
+++ /dev/null
@@ -1,3 +0,0 @@
-#!/usr/bin/env python
-# -*- coding: utf-8 -*-
-# @Desc   :
diff --git a/tests/metagpt/environment/software_env/__init__.py b/tests/metagpt/environment/software_env/__init__.py
deleted file mode 100644
index 2bcf8efd0..000000000
--- a/tests/metagpt/environment/software_env/__init__.py
+++ /dev/null
@@ -1,3 +0,0 @@
-#!/usr/bin/env python
-# -*- coding: utf-8 -*-
-# @Desc   :