I was trying to disable signup module and got this error message:

Fatal error: Call to a member function get_access_callback() on a non-object in /home/site/public_html/sites/all/modules/views/plugins/views_plugin_display_page.inc on line 78

I did it with and without first disabling signup Views content but still get the same message. Not sure if this is View's problem or Signup's but I will post this message here first since I only get this kind of problem when disabling Signup module.

Comments

blueblade’s picture

blueblade commented

I have just found that disabling those signup views that shipped with the module wont take care of the problem (I also tried deleting them but was not able to). I ended up disabling Views module entirely first then disable Signup module itself. That way my site was able to run afterward.