Posted by albert volkman on June 3, 2015 at 8:01pm
This is a tad obscure since it's an older version, but-
GET https://packagist.drupal-composer.org/packages/drupal/admin_views.json
The link return for version 7.1.2-
http://ftp.drupal.org/files/projects/admin_views-7.x.1.2.zip
is incorrect. It should be-
http://ftp.drupal.org/files/projects/admin_views-7.x-1.2.zip

Comments
Thanks for the bug report.
Thanks for the bug report. The Admin views module has a bogus tag (7.x.1.2) and it looks like our version parse selects the wrong tag.
http://cgit.drupalcode.org/admin_views/commit/?id=8128a446b43c1461ec927e...
Please fill a issue in https://github.com/drupal-composer/drupal-parse-composer
Fixed the bug in
Fixed the bug in https://github.com/drupal-composer/drupal-parse-composer/issues/36