diff --git a/.gitignore b/.gitignore
index b9d51f7..5e378bf 100644
--- a/.gitignore
+++ b/.gitignore
@@ -8,4 +8,6 @@ Dataset/
 /*/__pycache__
 .mypy_cache
 /*/image*
-/*/visdom.server.log
\ No newline at end of file
+*/visdom.server.log
+FilterEvaluator/visdom.server.log
+visdom.server.log
diff --git a/FilterEvaluator/visdom.server.log b/FilterEvaluator/visdom.server.log
deleted file mode 100644
index 3ef93ff..0000000
Binary files a/FilterEvaluator/visdom.server.log and /dev/null differ
diff --git a/Readme.md b/Readme.md
new file mode 100644
index 0000000..6990420
--- /dev/null
+++ b/Readme.md
@@ -0,0 +1,3 @@
+Know issue:
+1 visdom  requests.exceptions.ConnectionError: HTTPConnectionPool(host='localhost', port=8097):
+  ==> You may need run "python -m visdom.server" at first in a new mechine.
\ No newline at end of file
diff --git a/visdom.server.log b/visdom.server.log
deleted file mode 100644
index 6d80f5d..0000000
--- a/visdom.server.log
+++ /dev/null
@@ -1,24 +0,0 @@
-/home/colin/anaconda3/lib/python3.7/site-packages/visdom/server.py:30: DeprecationWarning: zmq.eventloop.ioloop is deprecated in pyzmq 17. pyzmq now works with default tornado and asyncio eventloops.
-  ioloop.install()  # Needs to happen before any tornado imports!
-Checking for scripts.
-It's Alive!
-Traceback (most recent call last):
-  File "/home/colin/anaconda3/lib/python3.7/runpy.py", line 193, in _run_module_as_main
-    "__main__", mod_spec)
-  File "/home/colin/anaconda3/lib/python3.7/runpy.py", line 85, in _run_code
-    exec(code, run_globals)
-  File "/home/colin/anaconda3/lib/python3.7/site-packages/visdom/server.py", line 1308, in <module>
-    download_scripts_and_run()
-  File "/home/colin/anaconda3/lib/python3.7/site-packages/visdom/server.py", line 1304, in download_scripts_and_run
-    main()
-  File "/home/colin/anaconda3/lib/python3.7/site-packages/visdom/server.py", line 1299, in main
-    print_func=print_func, user_credential=user_credential)
-  File "/home/colin/anaconda3/lib/python3.7/site-packages/visdom/server.py", line 1219, in start_server
-    app.listen(port, max_buffer_size=1024 ** 3)
-  File "/home/colin/anaconda3/lib/python3.7/site-packages/tornado/web.py", line 2042, in listen
-    server.listen(port, address)
-  File "/home/colin/anaconda3/lib/python3.7/site-packages/tornado/tcpserver.py", line 143, in listen
-    sockets = bind_sockets(port, address=address)
-  File "/home/colin/anaconda3/lib/python3.7/site-packages/tornado/netutil.py", line 168, in bind_sockets
-    sock.bind(sockaddr)
-OSError: [Errno 98] Address already in use