Error msg: Undefined index

Hi there. Thanks for reporting. Couple of questions.

What theme are you using for the front end? Are pages loading ok except for message?

Same error message, just installed / enabled Zen + created / enabled a sub-theme... using Zen 7.x-3.x-dev. All pages are loading fine except for the error message. Any pointers would be great.

I can stop the error message showing easily enough by checking for the index. But I'm a bit worried it appears at all.

It looks like it is a side effect of sub theming. I'll try and investigate further.

@Jeremy -can you go into more detail about what you did to check for the index? thanks!

I changed:

    $meta['suggestions'] = $suggestions;
    $meta['template_file'] = $template_file;
    $meta['preprocessors'] = $info['preprocess functions'];  //line 512

to:

    $meta['suggestions'] = $suggestions;
    $meta['template_file'] = $template_file;
    if (isset($info['preprocess functions'])) {
      $meta['preprocessors'] = $info['preprocess functions'];
    }

is that what you mean?

Same as @ameee : same error message, just installed / enabled Zen + created / enabled a sub-theme... using Zen 7.x-3.x-dev.

I've got the same notice, and im not using a base theme., im developing the theme from scratch

I can provide Firebug debugging information about this - It happens reliably on my system, let me know if you would like it, and what you would find most useful.

mnr

This seems to occur when the theme folder contains extra template files. When I remove my custom node--node-type.tpl.php files and clear the cache, the error does not occur.

Localhost, by extra template files do you mean in-use-but-custom template overrides in the currently used theme folder, or unused tpls, like for a content type or nid that doesn't exist?

I'm having similar errors but the blog post here has me thinking all it is is that I printed some optional fields without an

 if (isset(field_xxx)) { ...
} 

check.

This may be related to #1239562: Undefined index errors.

Could you add this to the devel_themer_theme_registry_alter function:

if (!isset($theme_registry[$hook]['preprocess functions']) || 
    !isset($theme_registry[$hook]['process functions'])) {
  var_dump($hook);
}

and post the output here.

See attached patch for where you should place the code. This code should print the hooks which don't have any preprocess functions attached to them. (in your html).

Remember to clear you cache.

Ok, i copied all files from bartik to a new theme named barty. Changed the info file and references of bartik in template.php. => no notices
I created an extra template file: page--front.tpl.php, i cleared the cache. => no notices

I disabled a custom module and notices went away. Re-enabling that module, I can get rid of the notices by changing my implementation of hook_theme_registry_alter() to add NULL values for 'preprocess functions', 'process functions', and 'theme path'; previously, these properties had not been set. Since the values are now set, there are no more undefined index errors.

Other parts of the theme system check that these values are set before trying to use them. I think Theme developer should do the same, as implemented by my patch in #1239562: Undefined index errors.

It seems your right. In theme() they check for the (pre)processor functions too: (line 884)

if (isset($base_hook_info['preprocess functions']) || isset($base_hook_info['process functions'])) {

I'll reopen the other issue and close this one. Could you alter your patch so it uses isset() in stead of empty() so it is consistent with the rest of the code.

see #1239562: Undefined index errors for a fix.