Update Extensions page error if Composer not found

Changes are made on on 11.x (our main development branch) first, and are then back ported as needed according to the Core change policies → .

The "Update Extensions" page is actually not in core; it's part of the contributed Automatic Updates module. (Package Manager has no UI at all.) Moving to the appropriate issue queue.

Since this is a user facing fatal error, bumping to critical.

We might need a second issue to try to investigate further why the executable can't be found too.

Same error in Drupal CMS

Same issue here.

I installed Drupal CMS on a shared hosting server and visiting 'Browse' shows the error,

Unable to download modules via the UI: The composer executable cannot be found. Make sure it's installed and in the $PATH

I tried to place a copy of composer.phar on my host server but that didn't work. This is what I did.

I navigated to the root of my host account where I have vendor folder then I ran the following commands:

curl -sS https://getcomposer.org/installer | php

chmod +x composer.phar

Then I added this in settings.php,

$settings['composer_executable'] = '/home/username/composer.phar';

This doesn't work.

I am sorry my issue is not really what this issue is all about - only related.

I have the same issue here.

I installed Drupal CMS on a shared hosting as well and visiting 'Browse' shows the error,

Unable to download modules via the UI: The composer executable cannot be found. Make sure it's installed and in the $PATH