Laravel 5.5 introduces some breaking changes. Unfortunately our
composer.json is set to pull in the latest version of
5.x, so it may have started pulling 5.5 when you run
composer install or
composer update. This will break UserFrosting!
We’ll get a patch that locks us in at Laravel 5.4 right away, for the time being. Sorry for anyone who tried to install UserFrosting for the first time this morning!