Add exceptions for removed autoloader service and class_loader parameters

src/Silex/Application.php

@@ -60,6 +60,10 @@ class Application extends \Pimple implements HttpKernelInterface, EventSubscribe
 
         $this['logger'] = null;
 
+        $this['autoloader'] = function () {
+            throw new \RuntimeException('You tried to access the autoloader service. The autoloader has been removed from Silex. It is recommended that you use Composer to manage your dependencies and handle your autoloading. See http://getcomposer.org for more information.');
+        };
+
         $this['routes'] = $this->share(function () {
             return new RouteCollection();
         });

src/Silex/Provider/DoctrineServiceProvider.php

@@ -118,6 +118,14 @@ class DoctrineServiceProvider implements ServiceProviderInterface
 
             return $dbs[$app['dbs.default']];
         });
+
+        if (isset($app['db.dbal.class_path'])) {
+            throw new \RuntimeException('You have provided the db.dbal.class_path parameter. The autoloader has been removed from Silex. It is recommended that you use Composer to manage your dependencies and handle your autoloading. If you are already using Composer, you can remove the parameter. See http://getcomposer.org for more information.');
+        }
+
+        if (isset($app['db.common.class_path'])) {
+            throw new \RuntimeException('You have provided the db.common.class_path parameter. The autoloader has been removed from Silex. It is recommended that you use Composer to manage your dependencies and handle your autoloading. If you are already using Composer, you can remove the parameter. See http://getcomposer.org for more information.');
+        }
     }
 
     public function boot(Application $app)

src/Silex/Provider/FormServiceProvider.php

@@ -51,6 +51,10 @@ class FormServiceProvider implements ServiceProviderInterface
 
             return new DefaultCsrfProvider($app['form.secret']);
         });
+
+        if (isset($app['form.class_path'])) {
+            throw new \RuntimeException('You have provided the form.class_path parameter. The autoloader has been removed from Silex. It is recommended that you use Composer to manage your dependencies and handle your autoloading. If you are already using Composer, you can remove the parameter. See http://getcomposer.org for more information.');
+        }
     }
 
     public function boot(Application $app)

src/Silex/Provider/MonologServiceProvider.php

@@ -56,6 +56,10 @@ class MonologServiceProvider implements ServiceProviderInterface
                 return Logger::DEBUG;
             };
         }
+
+        if (isset($app['monolog.class_path'])) {
+            throw new \RuntimeException('You have provided the monolog.class_path parameter. The autoloader has been removed from Silex. It is recommended that you use Composer to manage your dependencies and handle your autoloading. If you are already using Composer, you can remove the parameter. See http://getcomposer.org for more information.');
+        }
     }
 
     public function boot(Application $app)

src/Silex/Provider/TranslationServiceProvider.php

@@ -52,6 +52,10 @@ class TranslationServiceProvider implements ServiceProviderInterface
         $app['translator.message_selector'] = $app->share(function () {
             return new MessageSelector();
         });
+
+        if (isset($app['translation.class_path'])) {
+            throw new \RuntimeException('You have provided the translation.class_path parameter. The autoloader has been removed from Silex. It is recommended that you use Composer to manage your dependencies and handle your autoloading. If you are already using Composer, you can remove the parameter. See http://getcomposer.org for more information.');
+        }
     }
 
     public function boot(Application $app)

src/Silex/Provider/TwigServiceProvider.php

@@ -89,6 +89,10 @@ class TwigServiceProvider implements ServiceProviderInterface
                 $app['twig.loader.array'],
             ));
         });
+
+        if (isset($app['twig.class_path'])) {
+            throw new \RuntimeException('You have provided the twig.class_path parameter. The autoloader has been removed from Silex. It is recommended that you use Composer to manage your dependencies and handle your autoloading. If you are already using Composer, you can remove the parameter. See http://getcomposer.org for more information.');
+        }
     }
 
     public function boot(Application $app)

src/Silex/Provider/ValidatorServiceProvider.php

@@ -53,6 +53,10 @@ class ValidatorServiceProvider implements ServiceProviderInterface
         $app['validator.validator_factory'] = $app->share(function () {
             return new ConstraintValidatorFactory();
         });
+
+        if (isset($app['validator.class_path'])) {
+            throw new \RuntimeException('You have provided the validator.class_path parameter. The autoloader has been removed from Silex. It is recommended that you use Composer to manage your dependencies and handle your autoloading. If you are already using Composer, you can remove the parameter. See http://getcomposer.org for more information.');
+        }
     }
 
     public function boot(Application $app)