致命错误：未捕获的 ReflectionException：Class 配置不存在

Question

I'm working on an e-commerce project on Laravel 5.8, but since I accidently ran "laravel new" command on the project's folder I get this error when I'm trying to launch the project on a local server:

Fatal error: Uncaught ReflectionException: Class config does not exist in C:\wamp64\www\e-commerce\vendor\laravel\framework\src\Illuminate\Container\Container.php:788 Stack trace: 0 C:\wamp64\www\e-commerce\vendor\laravel\framework\src\Illuminate\Container\Container.php(788): ReflectionClass->__construct('config') 1 C:\wamp64\www\e-commerce\vendor\laravel\framework\src\Illuminate\Container\Container.php(667): Illuminate\Container\Container->build('config') 2 C:\wamp64\www\e-commerce\vendor\laravel\framework\src\Illuminate\Container\Container.php(615): Illuminate\Container\Container->resolve('config', Array) 3 C:\wamp64\www\e-commerce\vendor\laravel\framework\src\Illuminate\Foundation\Application.php(767): Illuminate\Container\Container->make('config', Array) 4 C:\wamp64\www\e-commerce\vendor\laravel\framework\src\Illuminate\Container\Container.php(1227): Illuminate\Foundation\Application->m ake('config') 5 C:\wamp64\www\e-commerce\vendor\laravel\framework\src\Illuminate\Log\LogManager.php(417): Illuminate\Container\C in C:\wamp64\www\e-commerce\vendor\laravel\framework\src\Illuminate\Container\Container.php on line 788"

The error on line 788 refers to that portion of code:

$reflector = new ReflectionClass($concrete)

This happened after I cloned my repo from Github. Now for every project that I try to run on a local server I get this error.

I tried "composer install", "composer update", "composer dump-autoload" but they all give the same error with this line at the end: "Script @php artisan package:discover --ansi handling the post-autoload-dump event returned with error code 255".

I checked the.env file to see if there was a namespace issue too, but there's none of it.

Thank you in advance for your help.

Answer 1

Try to remove de files in:

cd bootstrap/cache/
rm -rf *.php

In this directory are the file that initializes the structure, cache directory that contains structure-generated files for performance optimization, such as files and route cache services.

Answer 2

I tried @gulCunha 's answer and it worked.

After that, you have to run composer update in order to create a new composer.lock and php artisan config:cache after that and you should be good to go.

Answer 3

您是否更改了.env文件，错误地我添加了一个带有空格的"APP_NAME=aaa aa " ，然后检查了每个位置，之后APP_NAME=更改为不带空格，现在工作魅力。

Answer 4

You may check the following items

1. Check whether your APP_NAME has space. If space is there, use it in quotes.
2. Delete everything from bootstrap/cache/ folder.
3. run composer dump-autoload

Hope it will work

Answer 5

Make sure your .env file is the exact same as in your local environment. Make sure that the values on your .env file don't have spaces. Those that have spaces should be wrapped in quotes

Answer 6

I had a similar problem. Here is how I fixed it.

It started when I installed Toastr in my config/app.php providers. I had failed to add the trailing ",". Hence the problem.

Solution: Check the last package you installed. Check if you have added it correctly in the service providers.

Answer 7

I was creating a new Laravel 9 project with composer and got the same error.

Fatal error: Uncaught ReflectionException: Class "config" does not exist in .../vendor/laravel/framework/src/Illuminate/Container/Container.php:875
Stack trace:
#0 .../vendor/laravel/framework/src/Illuminate/Container/Container.php(875): ReflectionClass->__construct('config')
#1 .../vendor/laravel/framework/src/Illuminate/Container/Container.php(756): Illuminate\Container\Container->build('config')
#2 .../vendor/laravel/framework/src/Illuminate/Foundation/Application.php(855): Illuminate\Container\Container->resolve('config', Array, true)
#3 .../vendor/laravel/framework/src/Illuminate/Container/Container.php(692): Illuminate\Foundation\Application->resolve('config', Array)
#4 .../vendor/laravel/framework/src/Illuminate/Foundation/Application.php(840): Illuminate\Container\Container->make('config', Array)
#5 .../vendor/laravel/framework/src/Illuminate/Container/Container.php(1415): Illuminate\Foundation\Application->make('config')
#6 .../vendor/laravel/framework/src/Illuminate/Log/LogManager.php(515): Illuminate\Container\Container->offsetGet('config')
#7 .../vendor/laravel/framework/src/Illuminate/Log/LogManager.php(566): Illuminate\Log\LogManager->getDefaultDriver()
#8 .../vendor/laravel/framework/src/Illuminate/Log/LogManager.php(119): Illuminate\Log\LogManager->parseDriver(NULL)
#9 .../vendor/laravel/framework/src/Illuminate/Log/LogManager.php(702): Illuminate\Log\LogManager->driver()
#10 .../vendor/laravel/framework/src/Illuminate/Foundation/Exceptions/Handler.php(274): Illuminate\Log\LogManager->log('error', 'substr(): Argum...', Array)
#11 .../vendor/laravel/framework/src/Illuminate/Foundation/Console/Kernel.php(367): Illuminate\Foundation\Exceptions\Handler->report(Object(TypeError))
#12 .../vendor/laravel/framework/src/Illuminate/Foundation/Console/Kernel.php(131): Illuminate\Foundation\Console\Kernel->reportException(Object(TypeError))
#13 .../artisan(37): Illuminate\Foundation\Console\Kernel->handle(Object(Symfony\Component\Console\Input\ArgvInput), Object(Symfony\Component\Console\Output\ConsoleOutput))
#14 {main}

Next Illuminate\Contracts\Container\BindingResolutionException: Target class [config] does not exist. in .../vendor/laravel/framework/src/Illuminate/Container/Container.php:877
Stack trace:
#0 .../vendor/laravel/framework/src/Illuminate/Container/Container.php(756): Illuminate\Container\Container->build('config')
#1 .../vendor/laravel/framework/src/Illuminate/Foundation/Application.php(855): Illuminate\Container\Container->resolve('config', Array, true)
#2 .../vendor/laravel/framework/src/Illuminate/Container/Container.php(692): Illuminate\Foundation\Application->resolve('config', Array)
#3 .../vendor/laravel/framework/src/Illuminate/Foundation/Application.php(840): Illuminate\Container\Container->make('config', Array)
#4 .../vendor/laravel/framework/src/Illuminate/Container/Container.php(1415): Illuminate\Foundation\Application->make('config')
#5 .../vendor/laravel/framework/src/Illuminate/Log/LogManager.php(515): Illuminate\Container\Container->offsetGet('config')
#6 .../vendor/laravel/framework/src/Illuminate/Log/LogManager.php(566): Illuminate\Log\LogManager->getDefaultDriver()
#7 .../vendor/laravel/framework/src/Illuminate/Log/LogManager.php(119): Illuminate\Log\LogManager->parseDriver(NULL)
#8 .../vendor/laravel/framework/src/Illuminate/Log/LogManager.php(702): Illuminate\Log\LogManager->driver()
#9 .../vendor/laravel/framework/src/Illuminate/Foundation/Exceptions/Handler.php(274): Illuminate\Log\LogManager->log('error', 'substr(): Argum...', Array)
#10 .../vendor/laravel/framework/src/Illuminate/Foundation/Console/Kernel.php(367): Illuminate\Foundation\Exceptions\Handler->report(Object(TypeError))
#11 .../vendor/laravel/framework/src/Illuminate/Foundation/Console/Kernel.php(131): Illuminate\Foundation\Console\Kernel->reportException(Object(TypeError))
#12 .../artisan(37): Illuminate\Foundation\Console\Kernel->handle(Object(Symfony\Component\Console\Input\ArgvInput), Object(Symfony\Component\Console\Output\ConsoleOutput))
#13 {main}
  thrown in .../vendor/laravel/framework/src/Illuminate/Container/Container.php on line 877
Script @php artisan package:discover --ansi handling the post-autoload-dump event returned with error code 255

But this time it was not about the cache. Regardless of what the errors suggest, the problem was actually caused by the following lines found in vendor/vlucas/phpdotenv/src/Util/Str.php

$converted = $encoding === null ?                                             
    @\mb_convert_encoding($input, 'UTF-8') :                                  
    @\mb_convert_encoding($input, 'UTF-8', $encoding);

It actually occurred as I didn't have Multibyte String enabled when I built my PHP binaries. After rebuilding PHP with --enable-mbstring , the problem went away.

Answer 8

You should run 'composer update' command, and then 'php artisan optimize' to clear the config cache and routes.