PHP artisan config:cache 报错问题

vagrant@homestead:~/code/larabbs$ php artisan config:cache
Configuration cache cleared!

   LogicException  : Your configuration files are not serializable.

  at /home/vagrant/code/larabbs/vendor/laravel/framework/src/Illuminate/Foundation/Console/ConfigCacheCommand.php:71
    67|             require $configPath;
    68|         } catch (Throwable $e) {
    69|             $this->files->delete($configPath);
    70| 
  > 71|             throw new LogicException('Your configuration files are not serializable.', 0, $e);
    72|         }
    73| 
    74|         $this->info('Configuration cached successfully!');
    75|     }

  Exception trace:

  1   Error::("Call to undefined method Closure::__set_state()")
      /home/vagrant/code/larabbs/bootstrap/cache/config.php:29

  2   require()
      /home/vagrant/code/larabbs/vendor/laravel/framework/src/Illuminate/Foundation/Console/ConfigCacheCommand.php:67

  Please use the argument -v to see more details.
vagrant@homestead:~/code/larabbs$ cd bootstrap/cache/
vagrant@homestead:~/code/larabbs/bootstrap/cache$ ls
packages.php  services.php
vagrant@homestead:~/code/larabbs/bootstrap/cache$ 

根据站内的教程，获取最近活跃用户使用缓存redis,替换后无效，依然是文件缓存。

  1   Error::("Call to undefined method Closure::__set_state()")
      /home/vagrant/code/larabbs/bootstrap/cache/config.php:29

这个文件目录里面没有
现在怀疑是这个NFS Plugin的问题。
解决 Windows 系统使用 Homestead 运行 Laravel 本地项目响应缓慢问题

请各位指教一二~