Fixing the error message "the module {module_name} does not exist"

​Issue

If you receive an error message like the following: 

the module {module_name} does not exist

Resolution

This likely means that you have removed this module from your codebase, but there may still be references to this module in the database.

If you no longer need this module, tips and commands to resolve this issue can be found at:

https://www.drupal.org/forum/support/post-installation/2019-05-16/the-module-does-not-exist 

If this module is still needed for your site, please ensure that this module is installed.

Note