Class 'MaddHatter\LaravelFullcalendar\ServiceProvider' not found

[blackizlu]

I uploaded my app to my production server and when I want to update composer that error shows on console.

In ProviderRepository.php line 208:
                                                                    
  Class 'MaddHatter\LaravelFullcalendar\ServiceProvider' not found

On local nothing happen and the app is fine

[TareqAbughosh]

Did u do composer update? So you can install the package..

[BarkhaDimply]

We are also not able to install on Larave version 5.8.x
We get following error please help

The requested package laravel/framework (locked at v5.7.28, required as 5.8.*) is satisfiable by laravel/framework[v5.7.28] but these conflict with your requirements or minimum-stability.