安装laravel脚本抛出未定义的索引：默认

Question

尝试安装larvel脚本时，会抛出以下错误消息：

ErrorException in Handler.php line 205: Undefined index: default
in Handler.php line 205
at HandleExceptions->handleError('8', 'Undefined index: default', '/home/mazzuca1212/public_html/zurchy.com/application/vendor/laravel/framework/src/Illuminate/Foundation/Exceptions/Handler.php', '205', array('e' => object(NotFoundHttpException), 'status' => '404', 'settings' => array())) in Handler.php line 205
at Handler->renderHttpException(object(NotFoundHttpException)) in Handler.php line 158
at Handler->prepareResponse(object(Request), object(NotFoundHttpException)) in Handler.php line 145
at Handler->render(object(Request), object(NotFoundHttpException)) in Handler.php line 47
at Handler->render(object(Request), object(NotFoundHttpException)) in Pipeline.php line 81
at Pipeline->handleException(object(Request), object(NotFoundHttpException)) in Pipeline.php line 55
at Pipeline->Illuminate\Routing\{closure}(object(Request)) in compiled.php line 3220
at CheckForMaintenanceMode->handle(object(Request), object(Closure)) in compiled.php line 9865
at Pipeline->Illuminate\Pipeline\{closure}(object(Request)) in Pipeline.php line 33
at Pipeline->Illuminate\Routing\{closure}(object(Request)) in compiled.php line 9850
at Pipeline->then(object(Closure)) in compiled.php line 2416
at Kernel->sendRequestThroughRouter(object(Request)) in compiled.php line 2400
at Kernel->handle(object(Request)) in index.php line 54

我做了什么？

1. 创建＆amp;配置数据库＆amp;脚本.env和mysql.php文件中的用户。

2. 使用：

   重新创建数据库表

   php artisan migrate
   

3. 在浏览器中，我已使用以下网址验证了所有Laravel脚本要求：

   http://example.com/admin/install/check
   

4. 我尝试使用以下网址安装脚本时出现上一个错误：

   http://example.com/admin/install/
   

5. 共享主机上的脚本，但具有对帐户的shell访问权限。

我不熟悉Laravel，但是尝试安装脚本，所以我需要知道阻止安装的原因，或者我该如何调查这个问题？