( ! ) Fatal error: Interface 'Illuminate\Contracts\Auth\UserProvider' not found in C:\wamp64\www\old_bo\bo\vendor\laravel\framework\src\Illuminate\Auth\DatabaseUserProvider.php on line 12
Call Stack
#	Time	Memory	Function	Location
1	0.0262	260872	{main}( )	...\DatabaseUserProvider.php:0