Why is my Language Switcher Dropdown block NOT displayed in my site? I have a multi-language site in Drupal 7. And I use the Language Switcher Dropdown module in it. I enabled all the settings required by this module, as described in the module's readme.txt. I have also assigned the block to new region. But still the Language Switcher Dropdown block is not displayed anywhere in my site.

What are the other settings I may have to review/configure? Or maybe there is a possible plugin which conflicts with this one that causes the block not to be displayed?
make sure that:


add few languages to site here - admin/config/regional/language
enable one of Detection Methods here - admin/config/regional/language/configure
clear cache