octobercms/october · error · ApplicationException

Unknown column

Error message

Unknown column

What it means

Error "Unknown column" thrown in octobercms/october.

Source

Thrown at modules/backend/behaviors/importexportcontroller/ActionImport.php:67

        $model->import($matches, $importOptions);

        $this->vars['importResults'] = $model->getResultStats();
        $this->vars['returnUrl'] = $this->getRedirectUrlForType('import');
        $this->vars['sourceIndexOffset'] = $this->getImportSourceIndexOffset($importOptions['firstRowTitles']);
    }

    /**
     * actionImportLoadColumnSampleForm
     */
    public function actionImportLoadColumnSampleForm()
    {
        if (($columnId = post('file_column_id', false)) === false) {
            throw new ApplicationException(__("Missing column identifier"));
        }

        $columns = $this->getImportFileColumns();
        if (!array_key_exists($columnId, $columns)) {
            throw new ApplicationException(__("Unknown column"));
        }

        $path = $this->getImportFilePath();

        if (!$fileFormat = post('file_format', 'json')) {
            return null;
        }

        if ($fileFormat === 'json') {
            $data = $this->getImportSampleColumnsFromJson($path, (int) $columnId);
        }
        else {
            $data = $this->getImportSampleColumnsFromCsv($path, (int) $columnId);
        }

        // Clean up data
        foreach ($data as $index => $sample) {
            $data[$index] = Str::limit($sample, 100);

View on GitHub (pinned to b608633a7e)

When it happens

Trigger: Thrown at modules/backend/behaviors/importexportcontroller/ActionImport.php:67 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/e70b00232a95ebdf. Report an issue: GitHub.