我将Django项目更新为2.2.2版，现在当我调用ipdb进行调试时，服务器会告诉我该错误。如果我回到Django 2.2.1，该错误就会消失。
System check identified no issues (0 silenced).
June 06, 2019 - 08:19:36
Django version 2.2.2, using settings 'laserapp.settings'
Starting development server at http://127.0.0.1:8000/
Quit the server with CONTROL-C.
> /home/lynde/public_html/laserapp/gestion/views.py(192)get_context_data()
191 import ipdb; ipdb.set_trace()
--> 192 context = super(ResumeOrderCodeView, self).get_context_data(**kwargs)
193 try:
Traceback (most recent call last):
File "manage.py", line 22, in <module>
execute_from_command_line(sys.argv)
File "/home/lynde/public_html/env/laser/lib/python3.6/site-packages/django/core/management/__init__.py", line 381, in execute_from_command_line
utility.execute()
File "/home/lynde/public_html/env/laser/lib/python3.6/site-packages/django/core/management/__init__.py", line 375, in execute
self.fetch_command(subcommand).run_from_argv(self.argv)
File "/home/lynde/public_html/env/laser/lib/python3.6/site-packages/django/core/management/base.py", line 323, in run_from_argv
self.execute(*args, **cmd_options)
File "/home/lynde/public_html/env/laser/lib/python3.6/site-packages/django/core/management/commands/runserver.py", …