installation error typo3-neos- 500 internal server error

I have downloaded typo3-neos using php c:/xampp/Composer/bin/composer.phar create-project --dev --stability alpha typo3/neos-base-distribution TYPO3-Neos-1.0-alpha

my httpd.conf is :

<VirtualHost *:80>
ServerName neos.demo
DocumentRoot c:/xampp/htdocs/Typo3-Neos/Web/
SetEnv APPLICATION_ENV "development"
<Directory c:/xampp/htdocs/Typo3-Neos/Web/>
DirectoryIndex index.php
AllowOverride FileInfo Options=MultiViews
Order allow,deny
Allow from all
</Directory>
</VirtualHost>

and vhost is: 127.0.0.1 neos.demo

I am geting the follwing 500 Internal Server Error (a snippet)

1355480641: Execution of subprocess failed with exit code 1 without any further output.

(Please check your PHP error log for possible Fatal errors)

More information TYPO3\Flow\Core\Booting\Exception\SubProcessException thrown in file C:\xampp\htdocs\TYPO3-Neos\Packages\Framework\TYPO3.Flow\Classes\TYPO3\Flow\Core\Booting\Scripts.php in line 532. Reference code: 201310091327354b04b0

I have divided screenshot of the complete error page into three parts (error1.png, error2.png, error3.png) as the error stack is quite long, which is attached here enter image description here

How can this be solved

Solution

After setting your System up, start NEOS with http://neos.demo/setup first.