octobercms/october · error · ApplicationException

backend::lang.list.behavior_not_ready

Error message

backend::lang.list.behavior_not_ready

What it means

Error "backend::lang.list.behavior_not_ready" thrown in octobercms/october.

Source

Thrown at modules/backend/behaviors/ListController.php:423

    /**
     * createModel is an internal method used to prepare the list model object.
     * @return \October\Rain\Database\Model
     */
    protected function createModel()
    {
        return App::make($this->config->modelClass);
    }

    /**
     * listRender renders the widget collection.
     * @param  string $definition Optional list definition.
     * @return string Rendered HTML for the list.
     */
    public function listRender($definition = null)
    {
        if (!count($this->listWidgets)) {
            throw new ApplicationException(Lang::get('backend::lang.list.behavior_not_ready'));
        }

        if (!$definition || !isset($this->listDefinitions[$definition])) {
            $definition = $this->primaryDefinition;
        }

        $vars = [
            'toolbar' => null,
            'filter' => null,
            'list' => null,
        ];

        if (isset($this->toolbarWidgets[$definition])) {
            $vars['toolbar'] = $this->toolbarWidgets[$definition];
        }

        if (isset($this->filterWidgets[$definition])) {
            $vars['filter'] = $this->filterWidgets[$definition];

View on GitHub (pinned to b608633a7e)

When it happens

Trigger: Thrown at modules/backend/behaviors/ListController.php:423 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of octobercms/october@b608633a7e (2026-08-21). Data as JSON: /api/errors/4c8a74ec6ec0fcbd. Report an issue: GitHub.