Issue with illuminate request when upgrading to laravel 6 - laravel

Question

I am getting the following code error after trying to upgrade to laravel 6 from 5.8, has anyone experienced this before?
Fatal error: Uncaught TypeError: Argument 2 passed to Illuminate\Routing\UrlGenerator::__construct() must be an instance of Illuminate\Http\Request, null given, called in C:\xampp\htdocs\rebuild\vendor\laravel\framework\src\Illuminate\Routing\RoutingServiceProvider.php on line 68 and defined in C:\xampp\htdocs\rebuild\vendor\laravel\framework\src\Illuminate\Routing\UrlGenerator.php:120
Stack trace:
#0 C:\xampp\htdocs\rebuild\vendor\laravel\framework\src\Illuminate\Routing\RoutingServiceProvider.php(68): Illuminate\Routing\UrlGenerator->__construct(Object(Illuminate\Routing\RouteCollection), NULL, NULL)
#1 C:\xampp\htdocs\rebuild\vendor\laravel\framework\src\Illuminate\Container\Container.php(799): Illuminate\Routing\RoutingServiceProvider->Illuminate\Routing\{closure}(Object(Illuminate\Foundation\Application), Array)
#2 C:\xampp\htdocs\rebuild\vendor\laravel\framework\src\Illuminate\Container\Container.php(681): Illuminate\Container\Container->build(Object(Closure))
#3 C:\xampp\htdocs\rebuild\vendor\laravel\framework\src\ in C:\xampp\htdocs\rebuild\vendor\laravel\framework\src\Illuminate\Routing\UrlGenerator.php on line 120

Answer 1

Similar issue is already listing on on Laravel repository and on Laracasts
It seems the problem is because of url() and asset() Helper functions used within in configuration files.
To resolve this error use config() or base_path or define absolute or relative paths in your config files instead of url() and assset() function for e.g
'cdn' => url('vendor/js/tinymce/tinymce.min.js'),
Changing it to
'cdn' => Config('app.url').'/vendor/js/tinymce/tinymce.min.js',
Change asset('home') to base_path('public/home'),
NOTE: You shouldn't use laravel dependencies inside config because the
config is loaded early in the request life cycle and things like
global helpers may not be available.
If you are using some dependencies in config file define them in .env files