Laravel重定向时没有消息错误

I am getting NoMessages error while redirecting to a page.

add.blade.php

@extends('layout.app')
@section('content')
{!! Form::open(['action' => 'AddluggageController@addconfirm','method'=>'POST']) !!}
<div class="form-group row">
    <div class="col-4">
        <h5 class="col-12"><b> Passenger Info</b> </h5> 
        <div class="col-12">
            {{form::label('name'), 'Name'}} 
            {{form::text('name','',['class'=>'form-control '])}} <br><br>
        </div>
        <div class="col-12">
            {{form::label('phone'), 'Phone'}} 
            {{form::text('phone','',['class'=>'form-control '])}}
        </div>
    </div>
sni</div>
    {!! Form::close() !!}
@endsection

AddluggageController.php

    public function addconfirm(){
     return redirect('/addsuccess')->with('success', 'Saved Successfully');
    }

web.php

Route::post('/addconfirm', 'AddluggageController@addconfirm');

when I redirect it gives me

MethodNotAllowedHttpException

No message

According your comment you need to change route name to addluggage from addsuccess

 return redirect('/addluggage')->with('success', 'Saved Successfully');

Whenever you redirect it have get not post so change in controller where you redirect

public function addconfirm(){
   return view('addconfirm')->with('success', 'Saved Successfully');
   // here "addconfirm" is blade name as "addconfirm.blade.php" inside "resoruces/views" folder
}

You can also change from action to url

{!! Form::open(['url' => '/addconfirm','method'=>'POST']) !!}

change your route method to GET:
Route::get('/addconfirm', 'AddluggageController@addconfirm');

then add following to your blade:

@if (\Session::has('success'))

{!! \Session::get('success') !!}

@endif