phpsymfonydependency-injectionknp-snappy

knp-snappy-bundle has private service

After update from Symfony 2.2 to Symfony 3.4 I get error

The "knp_snappy.pdf" service or alias has been removed or inlined when the container was compiled. You should either make it public, or stop using the container directly and use dependency injection instead.

config.yml

knp_snappy:
  pdf:
    enabled: true
    binary:  '%knp_snappy_pdf_binary%'
    options: []

in controller action:

$html = $this->renderView(
    'FsaBundle:Registration:registrationEmail.html.twig', ['data' => $data]
);

$pdf = $this->get('knp_snappy.pdf')->getOutputFromHtml($html);
...

How to make knp_snappy.pdf public?

Solution

  • Upgrade KnpSnappyBundle to 1.5.2: they've done it for you. In case you're redefining the service (which should be useless), put the public: true in the definition.

    Moreover, put ^1.5 as the version in composer.json in order to receive all compatible upgrades (< 2) of this bundle (and I would recommend to do so for every third party code that follows the semantic versioning) during a composer update

    If you would like to know more about composer and its constraints, checkout the ^ (caret) documentation.