Can no longer run "composer require drupal/swiftmailer" I have a module that relies on swiftmailer, and needs the libraries installed. Whenever I've needed to install swiftmailer libraries to a Drupal environment, I've always run this command:

composer require drupal/swiftmailer


This no longer seems to work. Running this now prompts me for authentication to git.drupal.org, and I don't understand why. Apparently this isn't the same as my drupal.org credentials:



I'm not extremely familiar with Composer and am wondering what I can do here.
I know you're sorted now, but wanted to suggest that this could be because the repository URL for the coder module is using https.

See here:

https://help.github.com/articles/why-is-git-always-asking-for-my-password/

The link at the bottom of that article suggests that you can cache your credentials to avoid the need to enter them when using https:

https://help.github.com/articles/caching-your-github-password-in-git/

(I would have commented rather than answered, but it seems I don't have enough reputation to comment yet!)