Run though this damn checklist... Please!
- Search existing issues
- Have I run
rm bootstrap/compiled.php? - Have I run
git pull {laravel remote name} develop? - Have I run
rm -rf vendor? - Have I run
composer update --no-dev? - Have I tried turning it off and on again :P?
Post away!
Good checklist, these have solved most of my laravel4 troubles. You may want to mention checking permissions of vendor dir. See forum post http://forums.laravel.io/viewtopic.php?id=8713 this is an issue with composer.