Laravel error in /bootstrap/start.php: \Illuminate\Foundation\Application not found

Question

So, I installed Laravel on a dev server (php5.5.3, standard installation, mcrypt installed), and I get the following error message:

Fatal error: Class \'Illumina         


        

Answer 1

/bootstrap/start.php is created after composer install by running Laravel's php artisan optimize. I've had a lot of issues on this during upgrades of Laravel, but removing /bootstrap/start.php, composer.lock, and the vendor directory and re-running composer install should fix this issue.