Unable to install database: simplexml_load_file(): I/O warning : failed to load external entity "/home/user/www/concrete5/concrete/config/db.xml".
Trace:
#0 [internal function]: Concrete\Core\Package\StartingPointPackage->install_database() 
#1 /home/user/www/concrete5/concrete/controllers/install.php(294): call_user_func(Array) 
#2 [internal function]: Concrete\Controller\Install->run_routine('elemental_blank', 'install_databas...') 
#3 /home/user/www/concrete5/concrete/src/Controller/AbstractController.php(161): call_user_func_array(Array, Array) 
#4 /home/user/www/concrete5/concrete/src/Routing/ControllerRouteCallback.php(27): Concrete\Core\Controller\AbstractController->runAction('run_routine', Array) 
#5 /home/user/www/concrete5/concrete/src/Routing/Router.php(142): Concrete\Core\Routing\ControllerRouteCallback->execute(Object(Concrete\Core\Http\Request), Object(Concrete\Core\Routing\Route), Array) 
#6 /home/user/www/concrete5/concrete/src/Support/Facade/Facade.php(119): Concrete\Core\Routing\Router->execute(Object(Concrete\Core\Routing\Route), Array) 
#7 /home/user/www/concrete5/concrete/src/Application/Application.php(446): Concrete\Core\Support\Facade\Facade::__callStatic('execute', Array) 
#8 /home/user/www/concrete5/concrete/src/Application/Application.php(446): Concrete\Core\Support\Facade\Route::execute(Object(Concrete\Core\Routing\Route), Array) 
#9 /home/user/www/concrete5/concrete/bootstrap/start.php(230): Concrete\Core\Application\Application->dispatch(Object(Concrete\Core\Http\Request)) 
#10 /home/user/www/concrete5/concrete/dispatcher.php(36): require('/home/user/ww...') 
#11 /home/user/www/concrete5/index.php(2): require('/home/user/ww...') 
#12 {main}