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https://www.cnblogs.com/lxwphp/p/9412944.html

Need to be in  App\Exceptions\Handler.php File modification

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<?php    namespace App\Exceptions;    use Exception; use Illuminate\Auth\AuthenticationException; use Illuminate\Foundation\Exceptions\Handler as ExceptionHandler;    class Handler extends ExceptionHandler {     /**      * A list of the exception types that should not be reported.      *      * @var array      */     protected $dontReport = [         \Illuminate\Auth\AuthenticationException::class,         \Illuminate\Auth\Access\AuthorizationException::class,         \Symfony\Component\HttpKernel\Exception\HttpException::class,         \Illuminate\Database\Eloquent\ModelNotFoundException::class,         \Illuminate\Session\TokenMismatchException::class,         \Illuminate\Validation\ValidationException::class,     ];        /**      * Report or log an exception.      *      * This is a great spot to send exceptions to Sentry, Bugsnag, etc.      *      * @param  \Exception  $exception      * @return void      */     public function report(Exception $exception)     {         parent::report($exception);     }        /**      * Render an exception into an HTTP response.      *      * @param  \Illuminate\Http\Request  $request      * @param  \Exception  $exception      * @return \Illuminate\Http\Response      */     public function render($request, Exception $exception)     {         return parent::render($request, $exception);     }        /**      * Convert an authentication exception into an unauthenticated response.      *      * @param  \Illuminate\Http\Request  $request      * @param  \Illuminate\Auth\AuthenticationException  $exception      * @return \Illuminate\Http\Response      */     protected function unauthenticated($request, AuthenticationException $exception)     {         if ($request->expectsJson()) {             return response()->json(['error' => 'Unauthenticated.'], 401);         }            if (in_array('admin', $exception->guards())) {             return redirect()->guest('/admin/login');         }            #return redirect()->guest(route('login'));     } }