小编Max*_*Rah的帖子

我在Django 1.8.7上,我刚刚安装了Django-Allauth,通过克隆repo并在我的webapp终端上的应用程序目录中运行pip install.现在当我运行manage.py migrate时,我收到此错误:

?src git:(master) ? python manage.py migrate
    Traceback (most recent call last):
      File "manage.py", line 8, in <module>
        from django.core.management import execute_from_command_line
      File "/Library/Python/2.7/site-packages/django/core/management/__init__.py", line 10, in <module>
        from django.apps import apps
      File "/Library/Python/2.7/site-packages/django/apps/__init__.py", line 1, in <module>
        from .config import AppConfig
      File "/Library/Python/2.7/site-packages/django/apps/config.py", line 6, in <module>
        from django.utils.module_loading import module_has_submodule
      File "/Library/Python/2.7/site-packages/django/utils/module_loading.py", line 4, in <module>
        from importlib import import_module
      File "/Library/Python/2.7/site-packages/django/utils/importlib.py", line 6, in <module>
        from django.utils.deprecation import RemovedInDjango19Warning
    ImportError: cannot import name RemovedInDjango19Warning …

我在项目中使用react-infinite-scroll-component，它在对话框之外运行良好。当我滚动到页面底部时，将从服务器获取下一组数据，但我无法在 Material-UI 对话框中获得相同的操作。

这是对话框代码：

//imports\n\nexport default function Posts() {\n  const [open, setOpen] = React.useState(false);\n   //more consts\n   ...\n  const [posts, setPosts] = useState([]);\n  const [page, setPage] = useState(1);\n\n  const fetchPosts = () => {\n    axios.get(`${serverURL}/news?page=${page}`).then((res) => {\n      const result = res.data.results;\n      setPosts([...posts, ...result]);\n      setPage((prev) => prev + 1);\n    });\n    console.log("page", page);\n  };\n\n  useEffect(() => {\n    fetchPosts();\n  }, []);\n\n  return (\n    <div>\n      <h1>News</h1>\n      <Button variant="outlined" color="primary" onClick={handleClickOpen}>\n        Open News Dialog\n      </Button>\n      <Dialog\n        onClose={handleClose}\n        aria-labelledby="customized-dialog-title"\n        open={open}\n      >\n        <DialogTitle id="customized-dialog-title" onClose={handleClose}>\n           News\n …

我正在尝试在仅限 Rails API 的应用程序中创建一个新模型，但收到“无法加载此类文件”错误消息：

/Users/max/.rvm/gems/ruby-2.6.3/gems/spring-2.0.2/lib/spring/application.rb:171:in `fork': cannot load such file -- rails/generators/model/model/model_generator (LoadError)
/Users/max/.rvm/gems/ruby-2.6.3/gems/spring-2.0.2/lib/spring/application.rb:171:in `fork': undefined method `reject!' for nil:NilClass (NoMethodError)
/Users/max/.rvm/gems/ruby-2.6.3/gems/spring-2.0.2/lib/spring/application.rb:171:in `fork': undefined method `join' for nil:NilClass (NoMethodError)
/Users/max/.rvm/gems/ruby-2.6.3/gems/spring-2.0.2/lib/spring/application.rb:171:in `fork': undefined method `reject!' for nil:NilClass (NoMethodError)
/Users/max/.rvm/gems/ruby-2.6.3/gems/spring-2.0.2/lib/spring/application.rb:171:in `fork': undefined method `reject!' for nil:NilClass (NoMethodError)
/Users/max/.rvm/gems/ruby-2.6.3/gems/spring-2.0.2/lib/spring/application.rb:171:in `fork': undefined method `reject!' for nil:NilClass (NoMethodError)

我已经更改了 ruby​​ 版本，但没有用。

rails generate model Product title:string release_date:date release_time:time description:text price:decimal brand:string