Autocomplete Error

I have the same, however autocomplete works for me. I think there is a problem with this piece of code:
…/modules/finder/plugins/element_handler/autocomplete.inc from 370

$finder->find = array(
    'mode' => 'choices',
    'matches' => array(
       $element->id => array(
         'match' => $finder->esetting($element, 'autocomplete_match'),
         'match_x' => array(
            'operator' => $finder->esetting($finder->elements[$eid], 'autocomplete_match_custom_operator', '='),
            'value_prefix' => $finder->esetting($finder->elements[$eid], 'autocomplete_match_custom_prefix'),
            'value_suffix' => $finder->esetting($finder->elements[$eid], 'autocomplete_match_custom_suffix'),
         ),
       ),
     ),

I suppose that this $eid is actually an $element_id. After a small replacement it stopped throwing and error.

  $finder->find = array(
    'mode' => 'choices',
    'matches' => array(
       $element->id => array(
         'match' => $finder->esetting($element, 'autocomplete_match'),
         'match_x' => array(
            'operator' => $finder->esetting($finder->elements[$element_id], 'autocomplete_match_custom_operator', '='),
            'value_prefix' => $finder->esetting($finder->elements[$element_id], 'autocomplete_match_custom_prefix'),
            'value_suffix' => $finder->esetting($finder->elements[$element_id], 'autocomplete_match_custom_suffix'),
         ),
       ),
     ),

Hope it will work for you also

This also worked for me in version 7.x-2.0. Thanks for the fix.

Weird, in my case, autocomplete works for admin user but not for normal user.

nikkubhai, is it the same issue or a different one?

Yap, #1 solved it for me too. tnx

I had exactly the same error, and the proposed fix worked for me too!

Same here. It was driving me crazy trying to fix it.

Good fix

nikkubhai , You are probably searching for content where only the administrator has viewing wrights.
For example commerce product fields etc.

Works for me. Here's a patch from #1. Looks like a straightforward bug fix.