求助高手解答-> 我的設置流程如下：
#1

composer require socialiteproviders/line

#2 修改app/Providers/EventServiceProvider

protected $listen = [
    //...

    'SocialiteProviders\Manager\SocialiteWasCalled' => [
        'SocialiteProviders\Line\QqExtendSocialite@handle',
    ],
];

#3 .env中增加qq登录的key和秘钥

Line_KEY=164*****708
Line_SECRET=790f651*******ffb****80
Line_REDIRECT_URI=http://localhost:8000/auth/Line/callback

#4 config/services.php

'Line' => [
        'client_id' => env('Line_KEY'),
        'client_secret' => env('Line_SECRET'),
        'redirect' => env('Line_REDIRECT_URI'),
    ],

$5 php artisan make:controller Auth/SocialitesLineController

//...
use Socialite;

class SocialitesController extends Controller
{
    //跳转到QQ授权页面
    public function qq()
    {
        return Socialite::with('qq')->redirect();
    }

    //用户授权后，跳转回来
    public function callback()
    {
        $info = Socialite::driver('qq')->user();
        dump($info);
    }
}

#6 路由

Route::namespace('Auth')->prefix('auth/Line')->group(function () {
    Route::get('/', 'SocialitesLineController@Line');
    Route::get('callback', 'SocialitesLineController@callback');
});

#7 點按連結後出現 Driver [Line] not supported.