{"record":{"id":"938128c92555c3c4","repo":"z-song/laravel-admin","slug":"invalid-column-definition-class","errorCode":null,"errorMessage":"Invalid column definition [$class]","messagePattern":"Invalid column definition \\[\\$class\\]","errorType":"exception","errorClass":"Exception","httpStatus":null,"severity":"error","filePath":"src/Grid/Column.php","lineNumber":604,"sourceCode":"     * Use a defined column.\n     *\n     * @throws \\Exception\n     */\n    protected function useDefinedColumn()\n    {\n        // clear all display callbacks.\n        $this->displayCallbacks = [];\n\n        $class = static::$defined[$this->name];\n\n        if ($class instanceof Closure) {\n            $this->display($class);\n\n            return;\n        }\n\n        if (!class_exists($class) || !is_subclass_of($class, AbstractDisplayer::class)) {\n            throw new \\Exception(\"Invalid column definition [$class]\");\n        }\n\n        $grid = $this->grid;\n        $column = $this;\n\n        $this->display(function ($value) use ($grid, $column, $class) {\n            /** @var AbstractDisplayer $definition */\n            $definition = new $class($value, $grid, $column, $this);\n\n            return $definition->display();\n        });\n    }\n\n    /**\n     * Convert characters to HTML entities recursively.\n     *\n     * @param array|string|null $item\n     *","sourceCodeStart":586,"sourceCodeEnd":622,"githubUrl":"https://github.com/z-song/laravel-admin/blob/67c441eb78ecc5437e59775d89770cd9c2cb1e05/src/Grid/Column.php#L586-L622","documentation":"Error \"Invalid column definition [$class]\" thrown in z-song/laravel-admin.","triggerScenarios":"Thrown at src/Grid/Column.php:604 when the library encounters an invalid state.","commonSituations":"See trigger scenarios.","solutions":[],"exampleFix":null,"handlingStrategy":null,"validationCode":null,"typeGuard":null,"tryCatchPattern":null,"preventionTips":[],"tags":[],"backgroundTag":null,"analyzedSha":"67c441eb78ecc5437e59775d89770cd9c2cb1e05","analyzedAt":"2026-08-21T02:51:03.143Z","schemaVersion":2},"datasetVersion":"2026-08-21T03:17:12.404Z"}