Django {% else %} tag throws error "Invalid block tag on line XXX: 'else', expected 'empty' or 'endfor'."

[salicius]

i'd like to rewrite breadcrumb component but with this code throws that error (Invalid block tag on line XXX: 'else', expected 'empty' or 'endfor'.").
How can i fix ?

      <ul class="breadcrumb">
        {% for breadcrumb_name, breadcrumb_url in breadcrumblist %} {% if
        forloop.last %}
        <li class="breadcrumb-item active">
          <a href="{{ breadcrumb_url }}">{{ breadcrumb_name }}</a>
        </li>
        {% else %}
        <li class="breadcrumb-item">
          <a href="{{ breadcrumb_url }}">{{ breadcrumb_name }}</a>
        </li>
        {% endif %} {% endfor %}
      </ul>