wordpress admin interface is not working no drag and drop

Have you tried:

– deactivating all plugins to see if this resolves the problem. If this works, re-activate the plugins one by one until you find the problematic plugin(s).

– switching to the default theme to rule out any theme-specific problems.

– resetting the plugins folder by FTP or PhpMyAdmin. Sometimes, an apparently inactive plugin can still cause problems.

– re-uploading all files & folders – except the wp-content folder – from a fresh download of WordPress. Make sure that you delete the old copies of files & folder before uploading the new ones.

i have tried all this but i am unable to solve this problem

What’s the site in question? (Using twentytwelve with all plugins deactivated)

stylentrend.com is my site. i am using 2012 theme

with all plugins deactivated

Try adding define('CONCATENATE_SCRIPTS', false ); to the bottom of your wp-config.php file (just before the require_once line).

define('DOING_CRON', true);
define('CONCATENATE_SCRIPTS', false );

if ( !defined('ABSPATH') ) {
	/** Set up WordPress environment */
	require_once('./wp-load.php');
}

i have insert the following code but not help-ful still

hy guys

prblom sovled by installing plugin Use Google Libraries

thanks all of u to help me