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I've moved a Drupal 6 instance over to a development server so that I can test upgrade to Drupal 7.
After transfer, I am receiving this error:
Fatal error: Call to a member function init_display() on a non-object in /var/www/acromagupgrade/themes/acromag/library/ViewHelper.php on line 29
What might cause that? I'm thinking maybe all of the files didn't transfer over. What else might make Drupal report this error?