Hi,
I want to install concrete5.7.5.6 in a subdirectory of my website. All system requirements are okay, however the installation crashes. Can anyone help me to solve this error? Many thanks.
The error is:
Class Concrete\Core\Config\DatabaseLoader does not exist.

Trace:
#0 D:\www\arteriche.com\www\concrete\concrete\vendor\illuminate\container\Illuminate\Container\Container.php(501): ReflectionClass->__construct('Concrete\\Core\\C...') #1 D:\www\arteriche.com\www\concrete\concrete\src\Application\Application.php(541): Illuminate\Container\Container->build('Concrete\\Core\\C...', Array) #2 D:\www\arteriche.com\www\concrete\concrete\vendor\illuminate\container\Illuminate\Container\Container.php(425): Concrete\Core\Application\Application->build('Concrete\\Core\\C...', Array) #3 D:\www\arteriche.com\www\concrete\concrete\src\Config\ConfigServiceProvider.php(41): Illuminate\Container\Container->make('Concrete\\Core\\C...') #4 D:\www\arteriche.com\www\concrete\concrete\vendor\illuminate\container\Illuminate\Container\Container.php(207): Concrete\Core\Config\ConfigServiceProvider->Concrete\Core\Config\{closure}(Object(Concrete\Core\Application\Application)) #5 D:\www\arteriche.com\www\concrete\concrete\vendor\illuminate\container\Illuminate\Container\Container.php(498): Illuminate\Container\Container->Illuminate\Container\{closure}(Object(Concrete\Core\Application\Application), Array) #6 D:\www\arteriche.com\www\concrete\concrete\src\Application\Application.php(541): Illuminate\Container\Container->build(Object(Closure), Array) #7 D:\www\arteriche.com\www\concrete\concrete\vendor\illuminate\container\Illuminate\Container\Container.php(425): Concrete\Core\Application\Application->build(Object(Closure), Array) #8 D:\www\arteriche.com\www\concrete\concrete\src\Support\Facade\Facade.php(116): Illuminate\Container\Container->make('config/database') #9 D:\www\arteriche.com\www\concrete\concrete\src\Package\StartingPointPackage.php(523): Concrete\Core\Support\Facade\Facade::__callStatic('make', Array) #10 D:\www\arteriche.com\www\concrete\concrete\src\Package\StartingPointPackage.php(523): Concrete\Core\Support\Facade\Application::make('config/database') #11 [internal function]: Concrete\Core\Package\StartingPointPackage->set_site_permissions() #12 D:\www\arteriche.com\www\concrete\concrete\controllers\install.php(293): call_user_func(Array) #13 [internal function]: Concrete\Controller\Install->run_routine('elemental_full', 'set_site_permis...') #14 D:\www\arteriche.com\www\concrete\concrete\src\Controller\AbstractController.php(161): call_user_func_array(Array, Array) #15 D:\www\arteriche.com\www\concrete\concrete\src\Routing\ControllerRouteCallback.php(27): Concrete\Core\Controller\AbstractController->runAction('run_routine', Array) #16 D:\www\arteriche.com\www\concrete\concrete\src\Routing\Router.php(142): Concrete\Core\Routing\ControllerRouteCallback->execute(Object(Concrete\Core\Http\Request), Object(Concrete\Core\Routing\Route), Array) #17 D:\www\arteriche.com\www\concrete\concrete\src\Support\Facade\Facade.php(119): Concrete\Core\Routing\Router->execute(Object(Concrete\Core\Routing\Route), Array) #18 D:\www\arteriche.com\www\concrete\concrete\src\Application\Application.php(434): Concrete\Core\Support\Facade\Facade::__callStatic('execute', Array) #19 D:\www\arteriche.com\www\concrete\concrete\src\Application\Application.php(434): Concrete\Core\Support\Facade\Route::execute(Object(Concrete\Core\Routing\Route), Array) #20 D:\www\arteriche.com\www\concrete\concrete\bootstrap\start.php(231): Concrete\Core\Application\Application->dispatch(Object(Concrete\Core\Http\Request)) #21 D:\www\arteriche.com\www\concrete\concrete\dispatcher.php(36): require('D:\\www\\arterich...') #22 D:\www\arteriche.com\www\concrete\index.php(2): require('D:\\www\\arterich...') #23 {main}