小编Wan*_*ham的帖子

当我导航到 Laravel 项目的管理员登录页面时，我不明白为什么会出现上述错误。Laravel 版本是 7x。我怎样才能解决这个问题？

<?php

namespace App\Http\Controllers\Admin;

use Illuminate\Http\Request;
use App\Http\Controllers\Controller;
use Illuminate\Foundation\Auth\AuthenticatesUsers;


class LoginController extends Controller
{
    use AuthenticatesUsers;

    /**
     * Where to redirect admins after login.
     *
     * @var string
     */
    protected $redirectTo = '/admin';

    /**
     * Create a new controller instance.
     *
     * @return void
     */
    public function __construct()
    {
        $this->middleware('guest:admin')->except('logout');
    }

    /**
     * @return \Illuminate\Contracts\View\Factory|\Illuminate\View\View
     */
    public function showLoginForm()
    {
        return view('admin.auth.login');
    }
}

(myenv) wanjila@wanjila:~/Desktop/Python-Area/projects/Djangular$ pip freeze
djangorestframework==3.7.3
pkg-resources==0.0.0
(myenv) wanjila@wanjila:~/Desktop/Python-Area/projects/Djangular$ pip install django
Collecting django
  Using cached Django-2.0.tar.gz
    Complete output from command python setup.py egg_info:
    Traceback (most recent call last):
      File "<string>", line 1, in <module>
      File "/tmp/pip-build-qAnv7G/django/setup.py", line 32, in <module>
        version = __import__('django').get_version()
      File "django/__init__.py", line 1, in <module>
        from django.utils.version import get_version
      File "django/utils/version.py", line 61, in <module>
        @functools.lru_cache()
    AttributeError: 'module' object has no attribute 'lru_cache'

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每当我尝试在我的virtualenv内部安装django时,我都会收到这个错误.我怎样才能解决这个问题.