Trying to get property of non-object in i18n_langcode() (line 229 of i18n.module) and a bunch of other property of non-object notices

Question

Recent logs lies to me.

I even did a dpm($node->title); with devel and indeed it's there.

I have like 6 pages of these notices that appear per page load. They are all different locations but they all have the same error type, property of non object. Has anyone experienced something like this?

I don't think it's a hack, at least not a Core hack, cause Core has been updated several times.

Ugh, soo strange.

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This is hard to debug, here is another example

As you can see, I created a variable $test = i18n_language()->language and xdebug tells me $test = "en" yet on line 230 it fails to get the value according to the log.

Answer 1

Finally solved this mystery.

I was able to narrow it down to a bean block in the site's footer. Upon inspecting all of the bean's block display fields

Disabling this field fixed the issue. Where is it coming from? IDK yet. I will update once I know. Seems like custom module.

Update

Yep, turns out Featurette image link is coming from a custom module. Notice the big error in line 24 and line 30.

More errors here, what a mess!

Answer 2

Based on the information posed in the question, and your theme switch test- it sounds like you have some custom templates or template.php functions in your theme that call/use a variable (in this case, probably the title field) without first checking if the variable is actually set.

check for any custom php conditionals or processing of your custom fields/entities in your templates. Ideally, you'll want to wrap any operation that does something with them in a conditional. For example:

if ( array_key_exists('myCustomVariable',$content) && isset($content['myCustomVariable']) ) { 
  print render($content['myCustomVariable'];
}

Also worth noting, the title of your individual node types is not available (by default) in the page.tpl.php or html.tpl.php templates without some modifications and custom hooks in your theme to make the variable available.