octobercms/october · error · ApplicationException

Please specify the modelClass property for :type

Error message

Please specify the modelClass property for :type

What it means

Error "Please specify the modelClass property for :type" thrown in octobercms/october.

Source

Thrown at modules/backend/behaviors/ImportExportController.php:313

        }

        return null;
    }

    /**
     * getModelForType
     */
    protected function getModelForType($type)
    {
        $cacheProperty = $type.'Model';

        if ($this->{$cacheProperty} !== null) {
            return $this->{$cacheProperty};
        }

        $modelClass = $this->getConfig($type.'[modelClass]');
        if (!$modelClass) {
            throw new ApplicationException(__("Please specify the modelClass property for :type", [
                'type' => $type
            ]));
        }

        $model = App::make($modelClass);
        $this->controller->importExportExtendModel($model);

        return $this->{$cacheProperty} = $model;
    }

    /**
     * makeListColumns
     */
    protected function makeListColumns($config, $model)
    {
        $config = $this->makeConfig($config);
        $config->model = $model;

View on GitHub (pinned to b608633a7e)

When it happens

Trigger: Thrown at modules/backend/behaviors/ImportExportController.php:313 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/1681e4e6707553a0. Report an issue: GitHub.