Error in Drupal while enabling clean URL

The default unclean URLs that Drupal provides with question marks lurking around, could be annoying. But it does offer an option to have clean URLs. We might encounter some errors like

“error that your system configuration does not support this.”

while enabling the clean URL option from the Drupal panel.

To avoid this add the following lines to your .htaccess file located in the folder where Drupal is installed.

RewriteEngine on
RewriteBase /
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule ^(.*)$ /index.php?q=$1 [L,QSA]

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