Error when running WordPress on a new server

Hi all,
After the setup of a LAMP server with cPanel/WHM, I have made an attempt to install WordPress. But I faced with this error:
Input file not specified.
I searched on the internet, but didn’t get any idea about this. After submitting the problem on wordpress forum, there was one suggestion that it’s a LAMP problem that’s why I should post on LAMP forum.
Can anyone share any idea with me? I am going to setup this server for little online business. And your suggestion is highly appreciated.
Thanks.
