PHP Fatal error: Class ‘DrupalCoreDrupalKernel’ not found

I have installed the EntityPrint module in drupal 8 for the pdf conversion.

Followed below procedure:

curl -sS https://getcomposer.org/installer | php -- --install-dir=/usr/local/bin --filename=composer composer config repositories.drupal composer https://packages.drupal.org/8

Run: composer require "drupal/entity_print 2.x" in the site docroot/.

  1. https://packagist.org/packages/mikehaertl/phpwkhtmltopdf
  2. https://packagist.org/packages/dompdf/dompdf
  3. https://packagist.org/packages/tecnickcom/tcpdf

I have installed the above packages using, as the entity print module insisted to install it in drupal page.

Once the installation was done, drupal site was crashed, while checking the error log, I got the following:

FastCGI error: "PHP message: PHP Fatal error: Class 'DrupalCoreDrupalKernel' not found

[error] FastCGI sent in stderr: “PHP message: PHP Fatal error: Class ‘DrupalCoreDrupalKernel’ not found in /var/www/html/drupal/index.php on line 16” while reading response header from upstream

I have uninstalled the packages but unable to disable entity print. Since my drush command results in error.

Can anyone please help me to find out?

This article was republished from its original source.
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