Error thrown after composer update / install. A file is missing that's referenced in the package's composer.json : 'tests/Confide/helper.php'. For the time being, I just ran composer update, removed that file from the list in /vendor/zizaco/confide/composer.json, /vendor/composer/autoload_files.php, and /vendor/composer/installed.json, ran the unfinished php artisan clear-compiled and php artisan optimize. It went just fine after that.