admin/structure/pages returns error "Cannot unset string offsets" with themer module

Could you please provide steps to reproduce this issue?

Closing due to inactivity. Feel free to reopen if you have more info on how to reproduce this issue.

Having the same issue at node/[nid], and unfortunately I have no more clues since I enable devel_themer occasionally while developing... If I find more info, I'll let you know.

Okay, after investigating a little using some quick and dirty debug code :

/**
 * Near clone of theme().
 */
function devel_themer_theme_twin($hook, $variables) {
  if (!is_array($variables)) {
    dsm($hook);
    dsm($variables);
    return;
  }

Outputs :

• rate_button
• t like
• rate_button
• t don't like

So it seems that it's rate module's fault (or maybe a wrong custom theme implementation), with variables passed as strings somehow. I'll try and see if I can find more info.

#1359402: TD Module breaks pages admin with Fatal error is a duplicate of this issue.

These errors are caused by modules that use the old Drupal 6 way of passing variables to theming functions. See http://drupal.org/node/224333#theme_changes.

We could log the affected theming functions so that it's easier to debug. (see attached patch.)

It can't hurt to have more debugging info so i've committed this to 7.x-1.x.