devcontainer error using Docker Dev Environments - Dify Backend API

[jf-xia]

Dify version

main

Cloud or Self Hosted

Self Hosted

Steps to reproduce

devcontainer error using Docker Dev Environments - Dify Backend API:

6. Start backend:

   flask run --host 0.0.0.0 --port=5001 --debug

---

Reason:
old version watchdog in /opt/conda/lib/python3.11/site-packages (2.1.6)

---

Need to do:
pip install --upgrade watchdog

✔️ Expected Behavior

vscode ➜ /workspaces/dify/api (main) $ flask run --host 0.0.0.0 --port=5001 --debug
/opt/conda/lib/python3.11/site-packages/feedparser/encodings.py:29: DeprecationWarning: 'cgi' is deprecated and slated for removal in Python 3.13
import cgi

• Debug mode: on
  INFO:werkzeug:WARNING: This is a development server. Do not use it in a production deployment. Use a production WSGI server instead.
• Running on all addresses (0.0.0.0)
• Running on http://127.0.0.1:5001
• Running on http://172.17.0.2:5001
  INFO:werkzeug:Press CTRL+C to quit
  INFO:werkzeug: * Restarting with watchdog (inotify)
  /opt/conda/lib/python3.11/site-packages/feedparser/encodings.py:29: DeprecationWarning: 'cgi' is deprecated and slated for removal in Python 3.13
  import cgi
  WARNING:werkzeug: * Debugger is active!
  INFO:werkzeug: * Debugger PIN: 128-417-477

❌ Actual Behavior

vscode ➜ /workspaces/dify/api (main) $ flask run --host 0.0.0.0 --port=5001 --debug
/opt/conda/lib/python3.11/site-packages/feedparser/encodings.py:29: DeprecationWarning: 'cgi' is deprecated and slated for removal in Python 3.13
import cgi

• Debug mode: on
  INFO:werkzeug:WARNING: This is a development server. Do not use it in a production deployment. Use a production WSGI server instead.
• Running on all addresses (0.0.0.0)
• Running on http://127.0.0.1:5001
• Running on http://172.17.0.2:5001
  INFO:werkzeug:Press CTRL+C to quit
  Traceback (most recent call last):
  File "/opt/conda/bin/flask", line 8, in
  sys.exit(main())
  ^^^^^^
  File "/opt/conda/lib/python3.11/site-packages/flask/cli.py", line 1064, in main
  cli.main()
  File "/opt/conda/lib/python3.11/site-packages/click/core.py", line 1078, in main
  rv = self.invoke(ctx)
  ^^^^^^^^^^^^^^^^
  File "/opt/conda/lib/python3.11/site-packages/click/core.py", line 1688, in invoke
  return _process_result(sub_ctx.command.invoke(sub_ctx))
  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/conda/lib/python3.11/site-packages/click/core.py", line 1434, in invoke
  return ctx.invoke(self.callback, **ctx.params)
  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/conda/lib/python3.11/site-packages/click/core.py", line 783, in invoke
  return __callback(*args, **kwargs)
  ^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/conda/lib/python3.11/site-packages/click/decorators.py", line 92, in new_func
  return ctx.invoke(f, obj, *args, **kwargs)
  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/conda/lib/python3.11/site-packages/click/core.py", line 783, in invoke
  return __callback(*args, **kwargs)
  ^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/conda/lib/python3.11/site-packages/flask/cli.py", line 924, in run_command
  run_simple(
  File "/opt/conda/lib/python3.11/site-packages/werkzeug/serving.py", line 1097, in run_simple
  run_with_reloader(
  File "/opt/conda/lib/python3.11/site-packages/werkzeug/_reloader.py", line 440, in run_with_reloader
  reloader = reloader_loops[reloader_type](
  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/conda/lib/python3.11/site-packages/werkzeug/_reloader.py", line 315, in init
  from watchdog.events import EVENT_TYPE_OPENED
  ImportError: cannot import name 'EVENT_TYPE_OPENED' from 'watchdog.events' (/opt/conda/lib/python3.11/site-packages/watchdog/events.py)