UCH-583

Notice: Undefined index: #prefix in Drupal\file\Element\ManagedFile::uploadAjaxCallback() (line 191 of /mnt/www/html/uchicagoharrisstg/docroot/core/modules/file/src/Element/ManagedFile.php) #0 /mnt/www/html/uchicagoharrisstg/docroot/core/includes/bootstrap.inc(548): _drupal_error_handler_real(8, 'Undefined index...', '/mnt/www/html/u...', 191, Array) #1 /mnt/www/html/uchicagoharrisstg/docroot/core/modules/file/src/Element/ManagedFile.php(191): _drupal_error_handler(8, 'Undefined index...', '/mnt/www/html/u...', 191, Array) #2 [internal function]: Drupal\file\Element\ManagedFile::uploadAjaxCallback(Array, Object(Drupal\Core\Form\FormState), Object(Symfony\Component\HttpFoundation\Request)) #3 /mnt/www/html/uchicagoharrisstg/docroot/core/lib/Drupal/Core/Form/FormAjaxResponseBuilder.php(69): call_user_func_array(Array, Array) #4 /mnt/www/html/uchicagoharrisstg/docroot/core/lib/Drupal/Core/Form/EventSubscriber/FormAjaxSubscriber.php(98): Drupal\Core\Form\FormAjaxResponseBuilder->buildResponse(Object(Symfony\Component\HttpFoundation\Request), Array, Object(Drupal\Core\Form\FormState), Array) #5 /mnt/www/html/uchicagoharrisstg/docroot/core/lib/Drupal/Component/EventDispatcher/ContainerAwareEventDispatcher.php(111): Drupal\Core\Form\EventSubscriber\FormAjaxSubscriber->onException(Object(Symfony\Component\HttpKernel\Event\GetResponseForExceptionEvent), 'kernel.exceptio...', Object(Drupal\Component\EventDispatcher\ContainerAwareEventDispatcher)) #6 /mnt/www/html/uchicagoharrisstg/vendor/symfony/http-kernel/HttpKernel.php(221): Drupal\Component\EventDispatcher\ContainerAwareEventDispatcher->dispatch('kernel.exceptio...', Object(Symfony\Component\HttpKernel\Event\GetResponseForExceptionEvent)) #7 /mnt/www/html/uchicagoharrisstg/vendor/symfony/http-kernel/HttpKernel.php(75): Symfony\Component\HttpKernel\HttpKernel->handleException(Object(Drupal\Core\Form\FormAjaxException), Object(Symfony\Component\HttpFoundation\Request), 1) #8 /mnt/www/html/uchicagoharrisstg/docroot/core/lib/Drupal/Core/StackMiddleware/Session.php(57): Symfony\Component\HttpKernel\HttpKernel->handle(Object(Symfony\Component\HttpFoundation\Request), 1, true) #9 /mnt/www/html/uchicagoharrisstg/docroot/core/lib/Drupal/Core/StackMiddleware/KernelPreHandle.php(47): Drupal\Core\StackMiddleware\Session->handle(Object(Symfony\Component\HttpFoundation\Request), 1, true) #10 /mnt/www/html/uchicagoharrisstg/docroot/core/modules/page_cache/src/StackMiddleware/PageCache.php(99): Drupal\Core\StackMiddleware\KernelPreHandle->handle(Object(Symfony\Component\HttpFoundation\Request), 1, true) #11 /mnt/www/html/uchicagoharrisstg/docroot/core/modules/page_cache/src/StackMiddleware/PageCache.php(78): Drupal\page_cache\StackMiddleware\PageCache->pass(Object(Symfony\Component\HttpFoundation\Request), 1, true) #12 /mnt/www/html/uchicagoharrisstg/docroot/core/lib/Drupal/Core/StackMiddleware/ReverseProxyMiddleware.php(47): Drupal\page_cache\StackMiddleware\PageCache->handle(Object(Symfony\Component\HttpFoundation\Request), 1, true) #13 /mnt/www/html/uchicagoharrisstg/docroot/core/lib/Drupal/Core/StackMiddleware/NegotiationMiddleware.php(50): Drupal\Core\StackMiddleware\ReverseProxyMiddleware->handle(Object(Symfony\Component\HttpFoundation\Request), 1, true) #14 /mnt/www/html/uchicagoharrisstg/vendor/stack/builder/src/Stack/StackedHttpKernel.php(23): Drupal\Core\StackMiddleware\NegotiationMiddleware->handle(Object(Symfony\Component\HttpFoundation\Request), 1, true) #15 /mnt/www/html/uchicagoharrisstg/docroot/core/lib/Drupal/Core/DrupalKernel.php(652): Stack\StackedHttpKernel->handle(Object(Symfony\Component\HttpFoundation\Request), 1, true) #16 /mnt/www/html/uchicagoharrisstg/docroot/index.php(19): Drupal\Core\DrupalKernel->handle(Object(Symfony\Component\HttpFoundation\Request)) #17 {main}.