Pixeldust Drupal Support Service

DrupalKernel’ not found after server migration

i am try to migrate a drupal site to a new server (from cPanel to Plesk).

  1. I copyied the files from old server and pasted on new server
  2. Export database via phpmyadmin and import on new database on new server, again via phpmyadmin.
  3. Edit settings.php (on /httpdocs/sites/default/settings.php) with new credentials for database connection on new server.

and i have the error:

Warning: include(/var/www/vhosts/domain.gr/httpdocs/vendor/composer/../../public_html/core/lib/Drupal/Core/DrupalKernel.php): failed to open stream: No such file or directory in /var/www/vhosts/domain.gr/httpdocs/vendor/composer/ClassLoader.php on line 478

Warning: include(/var/www/vhosts/domain.gr/httpdocs/vendor/composer/../../public_html/core/lib/Drupal/Core/DrupalKernel.php): failed to open stream: No such file or directory in /var/www/vhosts/domain.gr/httpdocs/vendor/composer/ClassLoader.php on line 478

Warning: include(): Failed opening ‘/var/www/vhosts/domain.gr/httpdocs/vendor/composer/../../public_html/core/lib/Drupal/Core/DrupalKernel.php’ for inclusion (include_path=’/var/www/vhosts/domain.gr/httpdocs/vendor/pear/archive_tar:/var/www/vhosts/domain.gr/httpdocs/vendor/pear/console_getopt:/var/www/vhosts/domain.gr/httpdocs/vendor/pear/pear-core-minimal/src:/var/www/vhosts/domain.gr/httpdocs/vendor/pear/pear_exception:.:/opt/plesk/php/7.2/share/pear’) in /var/www/vhosts/domain.gr/httpdocs/vendor/composer/ClassLoader.php on line 478

Fatal error: Uncaught Error: Class ‘DrupalCoreDrupalKernel’ not found in /var/www/vhosts/domain.gr/httpdocs/index.php:16 Stack trace: #0 {main} thrown in /var/www/vhosts/domain.gr/httpdocs/index.php on line 16 (Line:16 in index.php : $kernel = new DrupalKernel(‘prod’, $autoloader);)

The two server are running on same php version 7.2 with nginx. Composer is allready installer on plesk v2.2.6

I tried to apply this solutions: PHP Fatal error: Class 'DrupalCoreDrupalKernel' not found

and others similar solutions, by updating composer (by running composer install, composer update) , with no reasults.

I have root access only in new server (we are the web-hosters) and we shouldered the site migration.

Did i miss something? Any help, will be nice.

This article was republished from its original source.
Call Us: 1(800)730-2416

Pixeldust is a 20-year-old web development agency specializing in Drupal and WordPress and working with clients all over the country. With our best in class capabilities, we work with small businesses and fortune 500 companies alike. Give us a call at 1(800)730-2416 and let’s talk about your project.

Let's Talk About a Project

FREE Drupal SEO Audit

Test your site below to see which issues need to be fixed. We will fix them and optimize your Drupal site 100% for Google and Bing. (Allow 30-60 seconds to gather data.)

Powered by

DrupalKernel’ not found after server migration

On-Site Drupal SEO Master Setup

We make sure your site is 100% optimized (and stays that way) for the best SEO results.

With Pixeldust On-site (or On-page) SEO we make changes to your site’s structure and performance to make it easier for search engines to see and understand your site’s content. Search engines use algorithms to rank sites by degrees of relevance. Our on-site optimization ensures your site is configured to provide information in a way that meets Google and Bing standards for optimal indexing.

This service includes:

  • Pathauto install and configuration for SEO-friendly URLs.
  • Meta Tags install and configuration with dynamic tokens for meta titles and descriptions for all content types.
  • Install and fix all issues on the SEO checklist module.
  • Install and configure XML sitemap module and submit sitemaps.
  • Install and configure Google Analytics Module.
  • Install and configure Yoast.
  • Install and configure the Advanced Aggregation module to improve performance by minifying and merging CSS and JS.
  • Install and configure Schema.org Metatag.
  • Configure robots.txt.
  • Google Search Console setup snd configuration.
  • Find & Fix H1 tags.
  • Find and fix duplicate/missing meta descriptions.
  • Find and fix duplicate title tags.
  • Improve title, meta tags, and site descriptions.
  • Optimize images for better search engine optimization. Automate where possible.
  • Find and fix the missing alt and title tag for all images. Automate where possible.
  • The project takes 1 week to complete.
MASTER YOUR DRUPAL SEO
Pixeldust and Pantheon Drupal Development
256