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(1/1) RuntimeError

Impossible to access an attribute ("name") on a null variable.

in detail.twig line 3
at Template->getAttribute(null, 'name', array())in Environment.php(497) : eval()'d code line 43
at __TwigTemplate_acf1ee899ac2feada41be579390ba8ee0895d2a2843289019ccf4ce48d441b3c->block_title_head(array('event' => null, 'app' => object(Application), 'url' => '/event/details/jwt-json-web-token-based-authentication-and-symfony-247749250'), array('title_head' => array(object(__TwigTemplate_acf1ee899ac2feada41be579390ba8ee0895d2a2843289019ccf4ce48d441b3c), 'block_title_head'), 'javascript_head' => array(object(__TwigTemplate_26759c883692420cbf227af54884e0d49005247d405be374ca1b9d7ad05bcab7), 'block_javascript_head'), 'title' => array(object(__TwigTemplate_acf1ee899ac2feada41be579390ba8ee0895d2a2843289019ccf4ce48d441b3c), 'block_title'), 'main' => array(object(__TwigTemplate_acf1ee899ac2feada41be579390ba8ee0895d2a2843289019ccf4ce48d441b3c), 'block_main')))in Template.php line 214
at Template->displayBlock('title_head', array('event' => null, 'app' => object(Application), 'url' => '/event/details/jwt-json-web-token-based-authentication-and-symfony-247749250'), array('title_head' => array(object(__TwigTemplate_acf1ee899ac2feada41be579390ba8ee0895d2a2843289019ccf4ce48d441b3c), 'block_title_head'), 'javascript_head' => array(object(__TwigTemplate_26759c883692420cbf227af54884e0d49005247d405be374ca1b9d7ad05bcab7), 'block_javascript_head'), 'title' => array(object(__TwigTemplate_acf1ee899ac2feada41be579390ba8ee0895d2a2843289019ccf4ce48d441b3c), 'block_title'), 'main' => array(object(__TwigTemplate_acf1ee899ac2feada41be579390ba8ee0895d2a2843289019ccf4ce48d441b3c), 'block_main')))in Environment.php(497) : eval()'d code line 42
at __TwigTemplate_26759c883692420cbf227af54884e0d49005247d405be374ca1b9d7ad05bcab7->doDisplay(array('event' => null, 'app' => object(Application), 'url' => '/event/details/jwt-json-web-token-based-authentication-and-symfony-247749250'), array('title_head' => array(object(__TwigTemplate_acf1ee899ac2feada41be579390ba8ee0895d2a2843289019ccf4ce48d441b3c), 'block_title_head'), 'javascript_head' => array(object(__TwigTemplate_26759c883692420cbf227af54884e0d49005247d405be374ca1b9d7ad05bcab7), 'block_javascript_head'), 'title' => array(object(__TwigTemplate_acf1ee899ac2feada41be579390ba8ee0895d2a2843289019ccf4ce48d441b3c), 'block_title'), 'main' => array(object(__TwigTemplate_acf1ee899ac2feada41be579390ba8ee0895d2a2843289019ccf4ce48d441b3c), 'block_main')))in Template.php line 453
at Template->displayWithErrorHandling(array('event' => null, 'app' => object(Application)), array('title_head' => array(object(__TwigTemplate_acf1ee899ac2feada41be579390ba8ee0895d2a2843289019ccf4ce48d441b3c), 'block_title_head'), 'javascript_head' => array(object(__TwigTemplate_26759c883692420cbf227af54884e0d49005247d405be374ca1b9d7ad05bcab7), 'block_javascript_head'), 'title' => array(object(__TwigTemplate_acf1ee899ac2feada41be579390ba8ee0895d2a2843289019ccf4ce48d441b3c), 'block_title'), 'main' => array(object(__TwigTemplate_acf1ee899ac2feada41be579390ba8ee0895d2a2843289019ccf4ce48d441b3c), 'block_main')))in Template.php line 420
at Template->display(array('event' => null, 'app' => object(Application)), array('title_head' => array(object(__TwigTemplate_acf1ee899ac2feada41be579390ba8ee0895d2a2843289019ccf4ce48d441b3c), 'block_title_head'), 'title' => array(object(__TwigTemplate_acf1ee899ac2feada41be579390ba8ee0895d2a2843289019ccf4ce48d441b3c), 'block_title'), 'main' => array(object(__TwigTemplate_acf1ee899ac2feada41be579390ba8ee0895d2a2843289019ccf4ce48d441b3c), 'block_main')))in Environment.php(497) : eval()'d code line 37
at __TwigTemplate_acf1ee899ac2feada41be579390ba8ee0895d2a2843289019ccf4ce48d441b3c->doDisplay(array('event' => null, 'app' => object(Application)), array('title_head' => array(object(__TwigTemplate_acf1ee899ac2feada41be579390ba8ee0895d2a2843289019ccf4ce48d441b3c), 'block_title_head'), 'title' => array(object(__TwigTemplate_acf1ee899ac2feada41be579390ba8ee0895d2a2843289019ccf4ce48d441b3c), 'block_title'), 'main' => array(object(__TwigTemplate_acf1ee899ac2feada41be579390ba8ee0895d2a2843289019ccf4ce48d441b3c), 'block_main')))in Template.php line 453
at Template->displayWithErrorHandling(array('event' => null, 'app' => object(Application)), array('title_head' => array(object(__TwigTemplate_acf1ee899ac2feada41be579390ba8ee0895d2a2843289019ccf4ce48d441b3c), 'block_title_head'), 'title' => array(object(__TwigTemplate_acf1ee899ac2feada41be579390ba8ee0895d2a2843289019ccf4ce48d441b3c), 'block_title'), 'main' => array(object(__TwigTemplate_acf1ee899ac2feada41be579390ba8ee0895d2a2843289019ccf4ce48d441b3c), 'block_main')))in Template.php line 420
at Template->display(array('event' => null))in Template.php line 432
at Template->render(array('event' => null), array())in TemplateWrapper.php line 47
at TemplateWrapper->render(array('event' => null))in Environment.php line 384
at Environment->render('@Core/events/detail.twig', array('event' => null))in CoreController.php line 30
at CoreController->render('events/detail.twig', array('event' => null))in EventsController.php line 40
at EventsController->detailAction(object(Request), 'jwt-json-web-token-based-authentication-and-symfony-247749250')
at call_user_func_array(array(object(EventsController), 'detailAction'), array(object(Request), 'jwt-json-web-token-based-authentication-and-symfony-247749250'))in HttpKernel.php line 144
at HttpKernel->handleRaw(object(Request), 1)in HttpKernel.php line 64
at HttpKernel->handle(object(Request), 1, true)in Application.php line 586
at Application->handle(object(Request))in Application.php line 563
at Application->run()in index.php line 18