[Symfony] how to disable "request.INFO: Matched route" messages in Monolog logs

app/config/config_prod.yml:

monolog:    

    handlers:        

        main:
            channels: ["!request"]

and run cache:clear -e prod if you on PROD environment.

[Sonata] "A non well formed numeric value encountered" error at upload

be sure you are using appropriate context in related form type in Sonata Admin class. If you doesnt need resizing or changing image compression, try to remove formats node in config.yml sonata_media node. It should looks like similar, without formats:

banner:    providers:        - sonata.media.provider.image

how to fix 'Mysql has gone away'

just ensure you have swap file and add to /etc/mysql/my.cnf :

max_allowed_packet=32M
wait_timeout=172800

[Sylius standalone bundles] An instance of Symfony\Bundle\FrameworkBundle\Templating\EngineInterface must be injected in FOS\RestBundle\View\ViewHandler to render templates.

Add this in app/config/config.yml:

framework:
    ...
    templating:
        engines: ['twig']

VichUploaderBundle doesnt call setFile() entity method, uploading not working

For me helped using using {{ form_start(form) }} instead of creating <form> tag by itself.

Vagrant SSH Permission denied (publickey,gssapi-keyex,gssapi-with-mic) fix

If you receive error "Permission denied (publickey,gssapi-keyex,gssapi-with-mic)" or "No more authentication methods to try." in verbose mode on connect via SSH to guest, also noticed that works when you disable provision script, this means your script contains error and so other Vagrant scripts cannot execute for correct SSH working.

Solution is to fix your provision script.

fos user bundle promote not working - solution

It is about command

php app/console fos:user:promote admin --super

just logout from user via Symfony Profiler and logon again.