Symfony 4 : An error occurred while loading the web debug toolbar

Question

I work on CentOS.

I've followed the tutorials :

• http://symfony.com/doc/current/best_practices/creating-the-project.html

• https://symfony.com/doc/current/page_creation.html

As I use Apache, I've followed this page too :

• https://symfony.com/doc/current/setup/web_server_configuration.html

I made a default controller and a default template. With this controller (/) I get the the following error (within the debug toolbar):

An error occurred while loading the web debug toolbar. Open the web profiler. 

When I click on the link : "Open the web profiler", I can see the Apache response :

Not Found The requested URL /_profiler/177403 was not found on this server. 

In the chrome inspector, I can see : GET http://172.31.18.7/_wdt/177403 404 (Not Found)

Here's the interesting part of my composer.json :

    "require": {         "php": "^7.1.3",         "ext-iconv": "*",         "doctrine/doctrine-fixtures-bundle": "^3.0",         "sensio/framework-extra-bundle": "^5.1",         "sonata-project/admin-bundle": "^3.35",         "sonata-project/doctrine-orm-admin-bundle": "^3.6",         "symfony/apache-pack": "^1.0",         "symfony/console": "^4.0",         "symfony/flex": "^1.0",         "symfony/framework-bundle": "^4.0",         "symfony/lts": "^4@dev",         "symfony/maker-bundle": "^1.4",         "symfony/orm-pack": "^1.0",         "symfony/requirements-checker": "^1.1",         "symfony/security-bundle": "^4.0",         "symfony/twig-bundle": "^4.0",         "symfony/validator": "^4.0",         "symfony/yaml": "^4.0"     },     "require-dev": {         "sensiolabs/security-checker": "^4.1",         "symfony/dotenv": "^4.0",         "symfony/web-profiler-bundle": "^4.0"     }, 

my httpd.conf :

<VirtualHost *:80> DocumentRoot /var/www/html/elora/public ServerName eloradev ServerAlias www.elora.dev DirectoryIndex index.php  <Directory "elora/public">     AllowOverride all     Order Allow,Deny     Deny from all     Allow from 127.0.0.1     Allow from ::1     Allow from localhost </Directory>  <Directory elora>     Options FollowSymlinks </Directory>      ErrorLog /var/apache/logs/error.log CustomLog /var/apache/logs/access.log combined    </VirtualHost> 

And my .htaccess :

DirectoryIndex index.php  <IfModule mod_negotiation.c>     Options -MultiViews </IfModule>  <IfModule mod_rewrite.c>     RewriteEngine On      RewriteCond %{REQUEST_URI}::$1 ^(/.+)/(.*)::\2$     RewriteRule ^(.*) - [E=BASE:%1]      RewriteCond %{HTTP:Authorization} .     RewriteRule ^ - [E=HTTP_AUTHORIZATION:%{HTTP:Authorization}]      RewriteCond %{ENV:REDIRECT_STATUS} ^$     RewriteRule ^index\.php(?:/(.*)|$) %{ENV:BASE}/$1 [R=301,L]      RewriteCond %{REQUEST_FILENAME} -f     RewriteRule ^ - [L]      RewriteRule ^ %{ENV:BASE}/index.php [L] </IfModule>  <IfModule !mod_rewrite.c>     <IfModule mod_alias.c>         RedirectMatch 307 ^/$ /index.php/     </IfModule> </IfModule> 

And, to finish, my /lucky/number (https://symfony.com/doc/current/page_creation.html) raises the apache message :

Not Found The requested URL /lucky/number was not found on this server. 

It looks like the routing component does'nt work.

The router rules (debug:router) :

-------------------------- -------- -------- ------ ------------------- Name                       Method   Scheme   Host   Path -------------------------- -------- -------- ------ -----------------------    app_homepage               ANY      ANY      ANY    /   app_lucky                  ANY      ANY      ANY    /lucky   app_lucky_number           ANY      ANY      ANY    /lucky/number   _twig_error_test           ANY      ANY      ANY    /_error/{code}.{_format}   _wdt                       ANY      ANY      ANY    /_wdt/{token}   _profiler_home             ANY      ANY      ANY    /_profiler/   _profiler_search           ANY      ANY      ANY    /_profiler/search   _profiler_search_bar       ANY      ANY      ANY    /_profiler/search_bar   _profiler_phpinfo          ANY      ANY      ANY    /_profiler/phpinfo   _profiler_search_results   ANY      ANY      ANY    /_profiler/{token}/search/results   _profiler_open_file        ANY      ANY      ANY    /_profiler/open   _profiler                  ANY      ANY      ANY    /_profiler/{token}   _profiler_router           ANY      ANY      ANY    /_profiler/{token}/router   _profiler_exception        ANY      ANY      ANY    /_profiler/{token}/exception   _profiler_exception_css    ANY      ANY      ANY    /_profiler/{token}/exception.css  -------------------------- -------- -------- ------ ----------------------- 

I've manually created the directory /_wdt, in case, but it did'nt change anything.

I've checked errors with debug:event-dispatcher, nothing special.

I've noticed that the cache for the profiler is in that directory : var/cache/dev/profiler/03/74/ and is named 177403

One more thing, I've ran composer with the 'root' user. And I've used chown to change the owner of my project.

Here's a part of my file .env :

###> symfony/framework-bundle ### APP_ENV=dev 

Answer 1

I think this is require htaccess or mod_rewrite

composer require symfony/apache-pack 

• Configuring a Web Server

  https://symfony.com/doc/current/setup/web_server_configuration.html