Looks like you have multiple versions of laravel in your composer.json, and remember to update your workbench's composer.json files with the new laravel version aswell.
Can you post your composer.json file please? This would help to debug this.
It's very likely you have an dependancy (that's non-core to Laravel) that isn't compatible with PHP 5.4, which Laravel 4.2 needs as a minimum requirement.
Uninstall those first, upgrade to Laravel 4.2 and then reinstall those dependancies at the latest versions.
Sign in to participate in this thread!
The Laravel portal for problem solving, knowledge sharing and community building.
The community