Access global field content

Question

What could be the reason for this error when I’m targeting a global field?:

Impossible to access an attribute ("footer") on a boolean variable ("").

I created a global set Footer with a matrix field also named Footer, I'm trying to get its content via:

{% for block in footer.footer %}
  {% if block.type == "column" %}
    <div>
      <h4>{{ block.headline }}</h4>
      <div>{{ block.columnContent }}</div>
    </div>
  {% endif %}
{% endfor %}

Answer 1

I do not see anything obviously wrong with your code, but something that has caught me out many times is a misspelling of field names, so be sure your twig code matches your field names exactly. One thing that is a bit odd is the error message references "footerContent", but that does not appear in your code.

Answer 2

I've finally found this shame fault. I created a variable named footer to control the layout – that's not that good in combination with a field named footer.

Sorry for stealing your time...