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How to fix "The following module is missing from the file system..." warning messages

If we have this warning message in our drupal 8 is as easy as running a few lines of code:

Use Drush

drush sql-query "DELETE FROM key_value WHERE collection='system.schema' AND name='module_name';"

Let's run this line in our console, simply add the name of the module that is causing us the error.


Use Devel

$query = \Drupal::database()->delete('key_value')
  ->condition('collection', 'system.schema')
  ->condition('name', 'module_name')

As with the previous example, we will replace module_name with the name of the affected module.

You need to have the Devel module enabled and run this line in /devel/php

Drupal 8