Symfony2 error when deploying - symfony

I'm new with symfony. I get this error when launch project after deploying.
Could u help me please.
Thanks
Fatal error: Uncaught exception 'InvalidArgumentException' with message 'Service "fragment.renderer.inline" must implement interface "Symfony\Component\HttpKernel\Fragment\FragmentRendererInterface".' in /htdocs/DEV-web/vendor/symfony/symfony/src/Symfony/Component/HttpKernel/DependencyInjection/FragmentRendererPass.php:58 Stack trace: #0 /htdocs/DEV-web/vendor/symfony/symfony/src/Symfony/Component/DependencyInjection/Compiler/Compiler.php(107): Symfony\Component\HttpKernel\DependencyInjection\FragmentRendererPass->process(Object(Symfony\Component\DependencyInjection\ContainerBuilder)) #1 /htdocs/DEV-web/vendor/symfony/symfony/src/Symfony/Component/DependencyInjection/ContainerBuilder.php(593): Symfony\Component\DependencyInjection\Compiler\Compiler->compile(Object(Symfony\Component\DependencyInjection\ContainerBuilder)) #2 /htdocs/DEV-web/app/bootstrap.php.cache(2698): Symfony\Component\DependencyInjection\ContainerBuilder->compile() #3 /htdocs/DEV-web/app/bootstrap.php.cache(2476): Symfony\Component\HttpKernel\Kernel->in in /htdocs/DEV-web/vendor/symfony/symfony/src/Symfony/Component/HttpKernel/DependencyInjection/FragmentRendererPass.php on line 58

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how can fix the "Fatal Error " while logging in the website

i just did a backup, and when i tried to log in the website (/wp-admin) this error appears:
Warning: require(/htdocs/wp-includes/version.php): Failed to open stream: No such file or directory in /htdocs/wp-settings.php on line 33
Fatal error: Uncaught Error: Failed opening required '/htdocs/wp-includes/version.php' (include_path='.:/usr/share/php') in /htdocs/wp-settings.php:33 Stack trace: #0 /htdocs/wp-config.php(86): require_once() #1 /htdocs/wp-load.php(50): require_once('/htdocs/wp-conf...') #2 /htdocs/wp-admin/admin.php(34): require_once('/htdocs/wp-load...') #3 /htdocs/wp-admin/index.php(10): require_once('/htdocs/wp-admi...') #4 {main} thrown in /htdocs/wp-settings.php on line 33
for more info this is my website: https://sg-plombier.be/
i don't know what to do now.
Please check if the file exists on the location, if exists then check the file and folder permission.
The file exist o the location, and for the update, I just upload the file (version.php) to the latest version of WordPress. And then these errors appears now:
Fatal error: Uncaught Error: Call to undefined function wp_cache_get() in /htdocs/wp-includes/option.php:165 Stack trace: #0 /htdocs/wp-includes/l10n.php(63): get_option('WPLANG') #1 /htdocs/wp-includes/l10n.php(139): get_locale() #2 /htdocs/wp-includes/l10n.php(766): determine_locale() #3 /htdocs/wp-includes/load.php(1395): load_textdomain('default', '/htdocs/wp-cont...') #4 /htdocs/wp-includes/class-wpdb.php(1815): wp_load_translations_early() #5 /htdocs/wp-includes/class-wpdb.php(734): wpdb->db_connect() #6 /htdocs/wp-includes/load.php(562): wpdb->__construct('sgplo1953451', 'hmeqvf7gos', 'sgplo1953451', '91.216.107.183') #7 /htdocs/wp-settings.php(124): require_wp_db() #8 /htdocs/wp-config.php(86): require_once('/htdocs/wp-sett...') #9 /htdocs/wp-load.php(50): require_once('/htdocs/wp-conf...') #10 /htdocs/wp-admin/admin.php(34): require_once('/htdocs/wp-load...') #11 /htdocs/wp-admin/index.php(10): require_once('/htdocs/wp-admi...') #12 {main} thrown in /htdocs/wp-includes/option.php on line 165
Fatal error: Uncaught Error: Call to a member function set() on null in /htdocs/wp-includes/l10n.php:784 Stack trace: #0 /htdocs/wp-includes/l10n.php(872): load_textdomain('default', '/htdocs/wp-cont...', 'fr_FR') #1 /htdocs/wp-includes/class-wp-fatal-error-handler.php(47): load_default_textdomain() #2 [internal function]: WP_Fatal_Error_Handler->handle() #3 {main} thrown in /htdocs/wp-includes/l10n.php on line 784
I ran into same error, after I disabled and uninstall w3 Total Cache Plugin, I dont know how somehow this plugin interact with the DB upon installation, I solved this by installing the plugin manually to my cpanel or you can use an ftp to your plugin directory...then booom! the admin loads fine.

unable to login wordpress localhost xaamp

I am getting an error whenever i try to open http://localhost/wordpress/wp-admin/
Fatal error: Uncaught Error: Call to undefined function mysql_connect() in C:\xampp\htdocs\wordpress\wp-includes\wp-db.php:1668 Stack trace: #0 C:\xampp\htdocs\wordpress\wp-includes\wp-db.php(632): wpdb->db_connect() #1 C:\xampp\htdocs\wordpress\wp-includes\load.php(425): wpdb->__construct('root', '', 'practice_debut', 'localhost') #2 C:\xampp\htdocs\wordpress\wp-settings.php(116): require_wp_db() #3 C:\xampp\htdocs\wordpress\wp-config.php(90): require_once('C:\xampp\htdocs...') #4 C:\xampp\htdocs\wordpress\wp-load.php(37): require_once('C:\xampp\htdocs...') #5 C:\xampp\htdocs\wordpress\wp-blog-header.php(13): require_once('C:\xampp\htdocs...') #6 C:\xampp\htdocs\wordpress\index.php(17): require('C:\xampp\htdocs...') #7 {main} thrown in C:\xampp\htdocs\wordpress\wp-includes\wp-db.php on line 1668
Fatal error: Uncaught Error: Call to undefined function wp_kses_normalize_entities() in C:\xampp\htdocs\wordpress\wp-includes\formatting.php:4316 Stack trace: #0 C:\xampp\htdocs\wordpress\wp-includes\class-wp-fatal-error-handler.php(190): esc_url('https://wordpre...') #1 C:\xampp\htdocs\wordpress\wp-includes\class-wp-fatal-error-handler.php(147): WP_Fatal_Error_Handler->display_default_error_template(Array, false) #2 C:\xampp\htdocs\wordpress\wp-includes\class-wp-fatal-error-handler.php(52): WP_Fatal_Error_Handler->display_error_template(Array, false) #3 [internal function]: WP_Fatal_Error_Handler->handle() #4 {main} thrown in C:\xampp\htdocs\wordpress\wp-includes\formatting.php on line 4316
when i tried for solutions i came across this one "untick mysqli and tick nd_mysqli"
but i don't know how to do this in localhost xamamp. I am new to wordpress and localhost.
Also when i tried to open http://localhost/phpmyadmin/
i get this error
phpMyAdmin - Error
The mysqli extension is missing. Please check your PHP configuration. See [a#doc/html/faq.html#faqmysql#documentation]our documentation for more information.
Try to use Wampserver64 application. Maybe your problem solved.

Issue in Connecting CosmosDB using Germlin Graph PHP

I am trying to connect cosmos azure db with Gremlin graph php I have enter all the details correctly but still facing the issue.
Here is exact error that I am facing:
Welcome to Azure Cosmos DB + Gremlin on PHP!
Attempting to connect...
Caught exception:
gremlin-php driver has thrown the following error :
PHP Fatal error:
Uncaught Brightzone\GremlinDriver\InternalException: gremlin-php driver has thrown the following error : Could not write to socket in E:\germl
in\azure-cosmos-db-graph-php-getting-started\vendor\brightzone\gremlin-php\src\C
onnection.php:791
Stack trace:
0 E:\germlin\azure-cosmos-db-graph-php-getting-started\vendor\brightzone\gremlin-php\src\Connection.php(523):Brightzone\GremlinDriver\Connection->error('Could not write...', 500, true)
1 E:\germlin\azure-cosmos-db-graph-php-getting-started\vendor\brightzone\gremlin-php\src\Connection.php(657):Brightzone\GremlinDriver\Connection->close()
2 [internal function]: Brightzone\GremlinDriver\Connection->__destruct()
3 {main}
thrown in E:\germlin\azure-cosmos-db-graph-php-getting-started\vendor\brightzone\gremlin-php\src\Connection.php on line 791
Any help is appreciated. Thanks

Fatal error: Uncaught exception 'ReflectionException' with message 'Class Cl\CommonBundle\Entity\integer does not exist

I have developed application in symfony2.3, it's working perfect in development environment but while I move to production it throws error. I tried but it can't resolve.
Following all error comes form different page :
This error comes while I tried to access my home page.
Fatal error: Uncaught exception 'ReflectionException' with message 'Class Cl\CommonBundle\Entity\integer does not exist' in /opt/lampp/htdocs/Cl/vendor/doctrine/common/lib/Doctrine/Common/Proxy/ProxyGenerator.php:795 Stack trace: #0 /opt/lampp/htdocs/Cl/vendor/doctrine/common/lib/Doctrine/Common/Proxy/ProxyGenerator.php(795): ReflectionParameter->getClass() #1 [internal function]: Doctrine\Common\Proxy\ProxyGenerator->generateMethods(Object(Doctrine\ORM\Mapping\ClassMetadata)) #2 /opt/lampp/htdocs/Cl/vendor/doctrine/common/lib/Doctrine/Common/Proxy/ProxyGenerator.php(276): call_user_func(Array, Object(Doctrine\ORM\Mapping\ClassMetadata)) #3 /opt/lampp/htdocs/Cl/vendor/doctrine/common/lib/Doctrine/Common/Proxy/AbstractProxyFactory.php(155): Doctrine\Common\Proxy\ProxyGenerator->generateProxyClass(Object(Doctrine\ORM\Mapping\ClassMetadata), '/opt/lampp/htdo...') #4 /opt/lampp/htdocs/Cl/vendor/symfony/symfony/src/Symfony/Bridge/Doctrine/CacheWarmer/ProxyCacheWarmer.php(71 in /opt/lampp/htdocs/Cl/vendor/doctrine/common/lib/Doctrine/Common/Proxy/Exception/UnexpectedValueException.php on line 51
When I clear cache of production environment in command line, it throws following exception :
[Doctrine\Common\Proxy\Exception\UnexpectedValueException]
The type hint of parameter "user" in method "setUser" in class "Cl\CommonBundle\Entity\GroupEventComment" is invalid.
[ReflectionException]
Class Collegelife\CommonBundle\Entity\integer does not exist
Once this has been solved then it throws to other class, so I can't understand that what's happen.
When I tried to login into page :
it shows me error like :
Fatal error: require(): Failed opening required '/opt/lampp/htdocs/collegelife/app/cache/prod/doctrine/orm/Proxies/__CG__CollegelifeCommonBundleEntityUniversity.php' (include_path='.:/opt/lampp/lib/php') in /opt/lampp/htdocs/collegelife/vendor/doctrine/common/lib/Doctrine/Common/Proxy/AbstractProxyFactory.php on line 207
I had the same question and resolved it.
Because My Entity's setting.
You can't type hint on a scalar type (integer/string/boolean etc) in PHP. e.g.
public function setSortOrder(\integer $sortOrder)
Should be:
public function setSortOrder($sortOrder)

Fatal error: Uncaught exception 'InvalidArgumentException' with message 'Unable to load class "Twig_Extension_Escaper"'

I have this error in my system in the production server, but I have no idea why cause in my development server everything run fine.
Fatal error: Uncaught exception 'InvalidArgumentException' with message 'Unable to load class "Twig_Extension_Escaper"' in /home/content/79/11253479/html/witf/path/vendor/symfony/symfony/src/Symfony/Component/ClassLoader/ClassCollectionLoader.php:259 Stack trace: #0 /home/content/79/11253479/html/witf/path/vendor/symfony/symfony/src/Symfony/Component/ClassLoader/ClassCollectionLoader.php(98): Symfony\Component\ClassLoader\ClassCollectionLoader::getOrderedClasses(Array) #1 /home/content/79/11253479/html/witf/path/app/bootstrap.php.cache(2303): Symfony\Component\ClassLoader\ClassCollectionLoader::load(Array, '/home/content/7...', 'classes', false, false, '.php') #2 /home/content/79/11253479/html/witf/path/app/bootstrap.php.cache(2139): Symfony\Component\HttpKernel\Kernel->doLoadClassCache('classes', '.php') #3 /home/content/79/11253479/html/witf/path/app/bootstrap.php.cache(2173): Symfony\Component\HttpKernel\Kernel->boot() #4 /home/content/79/11253479/html/index.php(27): Symfony\Component\HttpKernel\Kernel->handle(Object(S in /home/content/79/11253479/html/witf/path/vendor/symfony/symfony/src/Symfony/Component/ClassLoader/ClassCollectionLoader.php on line 259
please try composer update -o and afterwards app/console cache:clear --env=prod.
Further check that the file vendor/twig/twig/lib/Twig/Extension/Escaper.php actually exists on your production server.

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