jQuery datepicker in Symfony2 gives 'This value is not valid.'
I added a jQuery datepicker in my symfony2 form. twig file: $('.date').datepicker({ showOn: 'button', buttonImageOnly: true, changeMonth: true, changeYear: true, dateFormat: 'yy-MM-dd ', yearRange: "-0:+1" }); PostType.php $builder->add('toDate','datetime',array( 'input' => 'datetime', 'widget' => 'single_text', 'format' => 'yy-MM-dd', 'attr' => array('class' => 'date') )); I tried several date formats. But I always get This value is not valid. when I submit. I tried to get the form errors, but it doesn't give any more information. try something like this $('.date').datepicker({ showOn: