[Laravel 5] Installation troubles

[ivaaaan]

Hello. I'm install my l5 project from git and get this error:
Whoops\Exception\ErrorException thrown with message "Undefined index: path"
On this line in /var/www/html/board/storage/framework/compiled.php:
return (new CookieJar())->setDefaultPathAndDomain($config['path'], $config['domain']);
Why? And when i run:
php artisan cache:clear
i get
'InvalidArgumentException' with message 'Cache store [] is not defined.'
What is it?

[GrahamCampbell]

You need to update your app with all the changes from laravel/laravel develop.

[ivaaaan]

I ran. What else can I do?

[GrahamCampbell]

. I ran.

I didn't mean composer update. I meant physically make all the changes to your app yourself that have changed since you downloaded it on laravel/laravel. This is what you must do when you're using a version of laravel that wasn't ready for the public yet.