Laravel error Uncaught exception 'ReflectionException' with message 'Class App\Http\Kernel does not exist'

Question

When I wanted to add form in my laravel 5.2 project I got some errors in composer. After that My whole project got a strange error bellow :

Fatal error: Uncaught exception 'ReflectionException' with message 'Class App\Http\Kernel does not exist' in C:\xampp\htdocs\gifkadeh\vendor\laravel\framework\src\Illuminate\Container\Container.php:738 Stack trace: #0 C:\xampp\htdocs\gifkadeh\vendor\laravel\framework\src\Illuminate\Container\Container.php(738): ReflectionClass->__construct('App\Http\Kernel') #1 C:\xampp\htdocs\gifkadeh\vendor\laravel\framework\src\Illuminate\Container\Container.php(633): Illuminate\Container\Container->build('App\Http\Kernel', Array) #2 C:\xampp\htdocs\gifkadeh\vendor\laravel\framework\src\Illuminate\Foundation\Application.php(697): Illuminate\Container\Container->make('App\Http\Kernel', Array) #3 C:\xampp\htdocs\gifkadeh\vendor\laravel\framework\src\Illuminate\Container\Container.php(230): Illuminate\Foundation\Application->make('App\Http\Kernel', Array) #4 C:\xampp\htdocs\gifkadeh\vendor\laravel\framework\src\Illuminate\Container\Container.php(735): Illuminate\Container\Container->Illuminate\Container{closure}(Object(Illuminate in C:\xampp\htdocs\gifkadeh\vendor\laravel\framework\src\Illuminate\Container\Container.php on line 738

Answer 1

Sometimes dependencies are incompatible or have some bugs. You can try to:

1. restore your old composer.lock file
2. delete vendor folder
3. execute 'composer install'