我刚刚安装了一个基于Laravel的应用程序，该应用程序似乎可以在其中的某些页面上工作，但是许多其他页面都会抛出错误，从而使访问设置或配置文件变得完全不可能。我已经看到网上有很多解决方案，例如检查写入权限等。但是，目前似乎没有任何解决方案对我有用，因此，一定会得到一些专家帮助。
这是我的错误：
ReflectionException in Container.php line 749:
Class App\Http\Controllers\UserController does not exist
in Container.php line 749
at ReflectionClass->__construct('App\Http\Controllers\UserController') in Container.php line 749
at Container->build('App\Http\Controllers\UserController', array()) in Container.php line 644
at Container->make('App\Http\Controllers\UserController', array()) in Application.php line 709
at Application->make('App\Http\Controllers\UserController') in Route.php line 203
at Route->getController() in Route.php line 316
at Route->controllerMiddleware() in Route.php line 278
at Route->gatherMiddleware() in Router.php line 666
at Router->gatherRouteMiddleware(object(Route)) in Router.php line 646
at Router->runRouteWithinStack(object(Route), object(Request)) in Router.php line 629
at Router->dispatchToRoute(object(Request)) in Router.php line 607
at Router->dispatch(object(Request)) in Kernel.php line 268
at Kernel->Illuminate\Foundation\Http\{closure}(object(Request)) in Pipeline.php line 53
at Pipeline->Illuminate\Routing\{closure}(object(Request)) in CheckForMaintenanceMode.php line 46
at CheckForMaintenanceMode->handle(object(Request), object(Closure)) in Pipeline.php line 137
at Pipeline->Illuminate\Pipeline\{closure}(object(Request)) in Pipeline.php line 33
at Pipeline->Illuminate\Routing\{closure}(object(Request)) in Pipeline.php line 104
at Pipeline->then(object(Closure)) in Kernel.php line 150
at Kernel->sendRequestThroughRouter(object(Request)) in Kernel.php line 117
at Kernel->handle(object(Request)) in index.php line 53
这是UserController：
<?php
namespace App\Http\Controllers;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\Auth;
use App\User;
use App\Contact;
use Storage;
use File;
class Usercontroller extends Controller
{
//
private $rules = [
'name' => ['required' , 'min:5'],
'email' => ['required' , 'email'],
'photo'=> ['mimes:jpg,jpeg,png,gif,bmp']
];
private $upload_dir = 'public/uploads' ;
public function __construct()
{
$this->middleware('auth');
$this->upload_dir = base_path() .'/'. $this->upload_dir;
}
private function getRequest(Request $request)
{
$data = $request->all();
if($request->hasFile('photo'))
{
$photo = $request->file('photo');
$filename ="laravel-contact-".time()."-".uniqid()."-".$photo->getClientOriginalName();
Storage::put($filename, File::get($photo->getRealPath()));
$data = $request->all();
$data ['photo'] = $filename;
}
return $data;
}
public function profile()
{
//return view('user.profile', ['user' => User::findOrFail($id)]);
$id = Auth::id();
$user = User::findOrFail($id);
//$this->authorize('modify',$contact);
return view('user.profile',compact('user'));
}
public function show($id)
{
//return view('user.profile', ['user' => User::findOrFail($id)]);
$user = Contact::findOrFail($id);
//$this->authorize('modify',$contact);
return view('user.index',compact('user'));
}
public function update(Request $request)
{
$this->validate($request,$this->rules);
$data = $this->getRequest($request);
$id = Auth::id();
$user = User::findOrFail($id);
$user->update($data);
$oldPhoto = $user->photo;
if ($oldPhoto !== $user->photo){
$this->removePhoto($oldPhoto);
}
return redirect('profile/settings')->with('message','profile updated');
}
public function password()
{
return view('user.password');
}
public function resetPassword(Request $request)
{
$this->validate($request, [
'password' => 'required|confirmed|min:6',
]);
$user = $request->user();
$user->password = bcrypt($request->get('password'));
$user->save();
$id = Auth::id();
$user = User::findOrFail($id);
return view('user.index',compact('user'));
}
public function removePhoto($photo)
{
if (! empty($photo))
{
$path = storage_path('app/public/images/' . $photo);
if (File::exists($path)) {
File::Delete($path);
}
}
}
}
这是我的.env文件（我检查其中是否包含空格）：
APP_ENV=local
APP_KEY=base64:hcoymkbh8WxkAuetCUOPI3TJ30DrjVzkvNBOigjwopw=
APP_DEBUG=true
APP_LOG_LEVEL=debug
APP_URL=http://myurl.com
DB_CONNECTION=mysql
DB_HOST=localhost
DB_PORT=3306
DB_DATABASE=xxxx
DB_USERNAME=xxxx
DB_PASSWORD=xxxx
BROADCAST_DRIVER=log
CACHE_DRIVER=file
SESSION_DRIVER=file
QUEUE_DRIVER=sync
REDIS_HOST=127.0.0.1
REDIS_PASSWORD=null
REDIS_PORT=6379
MAIL_DRIVER=smtp
MAIL_HOST=mailtrap.io
MAIL_PORT=2525
MAIL_USERNAME=null
MAIL_PASSWORD=null
MAIL_ENCRYPTION=null
PUSHER_APP_ID=
PUSHER_KEY=
PUSHER_SECRET=
最后但并非最不重要的是，该项目的我的nginx配置文件：
server {
listen 80;
server_name myurl.com;
root /var/www/html/public;
add_header X-Frame-Options "SAMEORIGIN";
add_header X-XSS-Protection "1; mode=block";
add_header X-Content-Type-Options "nosniff";
index index.html index.htm index.php;
charset utf-8;
location / {
try_files $uri $uri/ /index.php?$query_string;
}
location = /favicon.ico { access_log off; log_not_found off; }
location = /robots.txt { access_log off; log_not_found off; }
error_page 404 /index.php;
location ~ \.php$ {
fastcgi_pass unix:/var/run/php/php7.2-fpm.sock;
fastcgi_index index.php;
fastcgi_param SCRIPT_FILENAME $realpath_root$fastcgi_script_name;
include fastcgi_params;
}
location ~ /\.(?!well-known).* {
deny all;
}
}
我们将不胜感激一些专家的见解，非常感谢