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

Question

I'm working under Linux Mint (based on Ubuntu 18.04), apache2 and php 7.2

When I generate a Symfony 3 project the toolbar is generated but with Symfony 4.2.5 the debugging toolbar does not show even with a fersh install.

I tried this solutions:

composer require symfony/apache-pack
chmod -R 777 var/cache

and

[sudo] a2enmod rewrite
[sudo] service apache2 restart

And changed 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>

But I still got the same message for the toolbar with this message at the end of the page:

An error occurred while loading the web debug toolbar.

Answer 1

我在Windows下工作，遇到了类似的问题，在我的情况下，安装apache-pack之后或之前甚至安装了探查器后，.htaccess文件都不存在于公用文件夹中，所以我只复制/粘贴了htaccess来自其他网站的代码，例如https://ourcodeworld.com/articles/read/793/how-to-configure-a-virtualhost-in-xampp-3-3-2-for-a-symfony-4-project ..希望这对您有所帮助