HI, I'm a new Concrete5 user here. I fired up a new FreeBSD 10.1 droplet on DigitalOcean and installed nginx, php-fpm, and Mysql server then downloaded Concrete5.7.4.2.zip

But when I open my domain name on browser, I got "500 Internal Server Error". Nginx error logs show:

PHP message: PHP Fatal error: Uncaught exception 'Exception' with message '"core/app" is not a valid asset group handle' in /usr/local/www/nginx-dist/web/concrete/src/Http/ResponseAssetGroup.php:200
Stack trace:
#0 /usr/local/www/nginx-dist/web/concrete/src/View/AbstractView.php(75): Concrete\Core\Http\ResponseAssetGroup->requireAsset('core/app', false)
#1 /usr/local/www/nginx-dist/web/concrete/themes/core/error.php(8): Concrete\Core\View\AbstractView->requireAsset('core/app')
#2 /usr/local/www/nginx-dist/web/concrete/src/View/View.php(189): include('/usr/local/www/...')
#3 /usr/local/www/nginx-dist/web/concrete/src/View/AbstractView.php(123): Concrete\Core\View\View->renderViewContents(Array)
#4 /usr/local/www/nginx-dist/web/concrete/src/Application/Service/UserIn

Can somebody tell me what's wrong? Thanks in advance.

Edit: False alarm. It was a chain of my misconfigs on cache server and nginx. The installation is completed now. Sorry for the noise.