I've been receiving the following error message when trying to do a drush config-export command.
However, I am able to successfully do the configuration export from the Drupal admin page (admin/config/development/configuration/full/export).

TypeError: Argument 2 passed to [error] Drupal\Core\Config\FileStorage::write() must be of the type array, boolean given, called in /vendor/drush/drush/commands/core/config.drush.inc on line 519 in Drupal\Core\Config\FileStorage->write() (line 140 of /web/core/lib/Drupal/Core/Config/FileStorage.php)
/vendor/drush/drush/commands/core/config.drush.inc(519): Drupal\Core\Config\FileStorage->write('field.field.nod...', false)
/vendor/drush/drush/commands/core/config.drush.inc(448): _drush_config_export('sync', '../data/sync', false)
/vendor/drush/drush/includes/command.inc(422): drush_config_export()
/vendor/drush/drush/includes/command.inc(231): _drush_invoke_hooks(Array, Array)
/vendor/drush/drush/includes/command.inc(199): drush_command()
/vendor/drush/drush/lib/Drush/Boot/BaseBoot.php(67): drush_dispatch(Array)
/vendor/drush/drush/includes/preflight.inc(66): Drush\Boot\BaseBoot-bootstrap_and_dispatch()
#7 /Users/Bcorrigan/sites/flowrite8/vendor/drush/drush/drush.php(12):

The only reference I can find to something similar is here: https://www.drupal.org/node/2830047

But I did not have that module installed when I started getting the error. It's installed now, but still getting the error and will probably remove it soon.

I started receiving the error yesterday, reverting to previous version of Git have made no difference in receiving the error.

Anyone else run into this? Know how to fix? Thanks for any help you can provide.

  • me too. started using drupalconsole to export as I didn't have time to look into this. but definitely the same and consistent issue. Drush Version : 8.1.9 Drupal version : 8.2.5 – Joe Mewes Feb 3 '17 at 16:33
  • 1
    The behavior can happen if the configuration directory (in your case ../data/sync') is not readable/writable by the webserver. Are you sure you can read/write with your webserver in this folder ? – Kevin Wenger Sep 6 '17 at 14:01

Just try

drush config-export --destination="<folder-path>"

Path should be some writable folder

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