Why is the composer not connected to Bitrix?

Question

1C-Bitrix

I can’t connect the composer to Bitrix in any way, I seem to have done everything as in this article https://dev.1c-bitrix.ru/community/webdev/user/137... But I get an error

Fatal error: require_once(): Failed opening required '/home/bitrix/www/vendor/autoload.php' (include_path='.:/usr/share/pear:/usr/share/php') in /home/bitrix/www/local/php_interface/init.php on line 3

I added composer.json to the root. The vendor directory has been added to the root. In the file /local/php_interface/init.php I wrote

require_once $_SERVER['DOCUMENT_ROOT'] . '/vendor/autoload.php';

But somehow it doesn’t work and I don’t understand why it doesn’t work, it seems that I correctly indicated the path

Answer 1

You do not find the /vendor/autoload.php file itself.
In general, the actions are correct. Perhaps the server is configured incorrectly or the $_SERVER['DOCUMENT_ROOT'] value is overwritten in init.php.
Check that the working directory of the site is on the server along the path "/home/bitrix/www"

Answer 2

Are you sure the file exists?
Try to put not a bare require_once, but with a check

if ( file_exists($_SERVER['DOCUMENT_ROOT'] . '/vendor/autoload.php') )
{
  require_once($_SERVER['DOCUMENT_ROOT'].'/vendor/autoload.php');
}