finding out what is causing dreaded “The website encountered an unexpected error. Please try again later.” message

Question

while doing a drupal 6 to 7 upgrade I am getting the not so helpful message \"The website encountered an unexpected error. Please try again later.\" everytime I go to certa

Answer 1

In Drupal 8.7 you can do this in core/lib/Drupal/Core/EventSubscriber/FinalExceptionSubscriber.php line 126:

$content = $this->t('The website encountered an  error. Please try again later.' . var_dump($error));