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I have Drupal 8 website created with composer. I put all files to my remote server in the sitename/www/ but my page won't load. I receive such an error:

Fatal error: Class 'Drupal\Core\DrupalKernel' not found in /home/bx273629/drupal8.com.ua/www/index.php on line 16

I think it is because I created that website with the Composer. Does any body know how to deploy correctly such a websites?

Website perfectly works locally!

I have such an error:

'Fatal error: require(): Failed opening required '/home/bx273629/drupal8.com.ua/www/../vendor/autoload.php' (include_path='.:/usr/local/pear/php56') in /home/bx273629/drupal8.com.ua/www/autoload.php on line 17'

And on the line 17 of these file I have such a string:

return require DIR . '/../vendor/autoload.php';

It is from the outer folder which was installed with composer.

  • Have you tried to run: composer update? – kenorb Aug 21 '17 at 8:38
  • For what? Where? – rick1 Aug 21 '17 at 9:01
  • Composer is not for deploying a site, but for copying all the dependencies. In the sites where I don't have access to a remote shell, I just copy with FTP the files on the remote server, after I copied all the dependencies with Composer, in local. – kiamlaluno Aug 21 '17 at 9:08
  • It sounds like you aren't copying all the files. – kiamlaluno Aug 21 '17 at 9:10
  • I use filezilla to replace all content of web folder to my remote server – rick1 Aug 21 '17 at 9:36
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I had faced this problem a while ago. After lot of research, I found that running composer install from the site root resolves any problem.

  • This does not provide an answer to the question. Once you have sufficient reputation you will be able to comment on any post; instead, provide answers that don't require clarification from the asker. - From Review – mradcliffe Aug 22 '17 at 21:38
  • I had faced this problem a while ago, after lots of research, I found the step I mentioned clear the problem. Hence I thought of sharing it. I did not have any questions or asked any questions in my response! @mradcliffe, I am not sure why this does not qualify as an answer. can you please explain? – Sensimple Aug 23 '17 at 7:32
  • When answering a question, avoid starting with try with, or users will think you are trying to get feedback from the OP, as if you weren't sure about that working, and you needed a feedback from the user who asked the question to give a better answer. – kiamlaluno Sep 11 '17 at 20:37
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You need to copy your vendor/ folder (generated by composer update on your local) into /home/bx273629/drupal8.com.ua/ dir (one level above www/), then index.php and rest files into /home/bx273629/drupal8.com.ua/www/ as normally vendor/ folder should be copied one level above of Drupal root (so it's not accessible from the outside), so the file www/../vendor/autoload.php will exists (same localization as on local).

If you cannot copy to the folder above your docroot (www/) due to access restriction, modify your autoload.php to point to the current folder, e.g.

return require __DIR__ . '/vendor/autoload.php';

and copy the vendor/ along with your Drupal files.

  • I did this but now has an error Fatal error: Class 'Drupal\Core\DrupalKernel' not found in /home/bx273629/drupal8.com.ua/www/index.php on line 16 in that line I have follwoing code $kernel = new DrupalKernel('prod', $autoloader); – rick1 Aug 21 '17 at 12:40
  • @rick1 Have you run composer update command in you Drupal root directory on your local to download dependencies? – kenorb Aug 21 '17 at 15:53
  • yes but it won't work. I mean I have the same error – rick1 Aug 21 '17 at 18:08
  • @rick1 Do you still have error about opening www/../vendor/autoload.php? are you sure the file exists there? – kenorb Aug 21 '17 at 20:41

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