Sending private message causes unknown error?

[JTP-123]

I found an unexpected error report when i tried to click the message icon and then I checked logs message:

Traceback (most recent call last):
    rv = self.handle_user_exception(e)
    rv = self.dispatch_request()
  File "/home/JTPing/microblog/env/lib/python3.10/site-packages/flask_login/utils.py", line 290, in decorated_view
    return current_app.ensure_sync(func)(*args, **kwargs)
  File "/home/JTPing/microblog/./app/main/routes.py", line 298, in messages
    return render_template('messages.html', messages=messages.items, next_url=next_url, prev_url=prev_url)
  File "/home/JTPing/microblog/env/lib/python3.10/site-packages/flask/templating.py", line 147, in render_template
    rv = template.render(context)
  File "/home/JTPing/microblog/env/lib/python3.10/site-packages/jinja2/environment.py", line 1301, in render
  File "/home/JTPing/microblog/env/lib/python3.10/site-packages/jinja2/environment.py", line 936, in handle_exception
    raise rewrite_traceback_stack(source=source)
    {% extends 'bootstrap/base.html' %} <!--You can replace it with other new bootstrap style as you want -->
  File "/home/JTPing/microblog/env/lib/python3.10/site-packages/flask_bootstrap/templates/bootstrap/base.html", line 23, in block 'body'
  File "/home/JTPing/microblog/app/templates/base.html", line 74, in block 'content'
    {% include '_post.html' %}
  File "/home/JTPing/microblog/app/templates/_post.html", line 43, in top-level template code
    return getattr(obj, attribute)
jinja2.exceptions.UndefinedError: 'app.models.Message object' has no attribute 'comments'

It seems that the problem lies in Message.html:
{% for post in messages %} {% inlcude '_post'.html}
it seems that the above include statement will make all variable post in post.html inherit from the message. that is to say, the variable post was replaced by message?

[miguelgrinberg]

Are you using code directly from this repository, or do you have your own versions of files? The error in your stack trace points to line 43 of the _post.html template. There is no line 43 in this template. What do you have in _post.html? Compare it against the code in this repository to determine if your template is incorrect.