Laravel 8.12 does not show error messages - php

Question

I don't understand why the error message is not displayed in form control with laravel. What is my error?
While I could get the "okey" message when I fulfill the conditions below, I could not clearly understand that the error message was not displayed because it did not meet the conditions.
"Information Is Beautiful When It Is Shared."
routes/web.php
<?php
use Illuminate\Support\Facades\Route;
use App\Http\Controllers\Website\contact;
Route::get('/register', [contact::class, 'index'])->name('register');
Route::post('/register-submit', [contact::class, 'post'])->name('register.post');
contact.php
<?php
namespace App\Http\Controllers\Website;
use App\Http\Controllers\Controller;
use Illuminate\Http\Request;
class contact extends Controller
{
public function index()
{
return view('Website.contact');
}
public function post(Request $request)
{
$request->validate([
'name' => ['required', 'max:10'],
'email' => ['required'],
]);
echo "okey";
}
}
contact.blade.php
<div class="container pt-lg-5">
#if ($errors->any())
<div class="alert alert-danger">
<ul>
#foreach ($errors->all() as $error)
<li>{{ $error }}</li>
#endforeach
</ul>
</div>
#endif
<form method="post" action="{{route('register.post')}}">
#csrf
<div class="form-group">
<label for="exampleInputEmail1">name</label>
<input type="text" class="form-control" name="name">
</div>
<div class="form-group">
<label for="exampleInputPassword1">E-mail</label>
<input type="email" class="form-control" name="email">
</div>
<button type="submit" class="btn btn-primary">Submit</button>
</form>
</div>
Illuminate\Validation\Validator {#258 ▼
#translator: Illuminate\Translation\Translator {#255 ▶}
#container: Illuminate\Foundation\Application {#2 ▶}
#presenceVerifier: Illuminate\Validation\DatabasePresenceVerifier {#259 ▶}
#failedRules: array:2 [▼
"name" => array:1 [▼
"Required" => []
]
"email" => array:1 [▼
"Required" => []
]
]
#excludeAttributes: []
#messages: Illuminate\Support\MessageBag {#261 ▼
#messages: array:2 [▼
"name" => array:1 [▼
0 => "The name field is required."
]
"email" => array:1 [▼
0 => "The email field is required."
]
]
#format: ":message"
}
#data: array:3 [▶]
#initialRules: array:2 [▶]
#rules: array:2 [▼
"name" => array:2 [▼
0 => "required"
1 => "max:10"
]
"email" => array:1 [▼
0 => "required"
]
]
#currentRule: "required"
#implicitAttributes: []
#implicitAttributesFormatter: null
#distinctValues: []
#after: []
+customMessages: []
+fallbackMessages: []
+customAttributes: []
+customValues: []
+extensions: []
+replacers: []
#fileRules: array:9 [▼
0 => "Between"
1 => "Dimensions"
2 => "File"
3 => "Image"
4 => "Max"
5 => "Mimes"
6 => "Mimetypes"
7 => "Min"
8 => "Size"
]
#implicitRules: array:10 [▶]
#dependentRules: array:21 [▼
0 => "After"
1 => "AfterOrEqual"
2 => "Before"
3 => "BeforeOrEqual"
4 => "Confirmed"
5 => "Different"
6 => "ExcludeIf"
7 => "ExcludeUnless"
8 => "ExcludeWithout"
9 => "Gt"
10 => "Gte"
11 => "Lt"
12 => "Lte"
13 => "RequiredIf"
14 => "RequiredUnless"
15 => "RequiredWith"
16 => "RequiredWithAll"
17 => "RequiredWithout"
18 => "RequiredWithoutAll"
19 => "Same"
20 => "Unique"
]
#excludeRules: array:3 [▼
0 => "ExcludeIf"
1 => "ExcludeUnless"
2 => "ExcludeWithout"
]
#sizeRules: array:8 [▼
0 => "Size"
1 => "Between"
2 => "Min"
3 => "Max"
4 => "Gt"
5 => "Lt"
6 => "Gte"
7 => "Lte"
]
#numericRules: array:2 [▼
0 => "Numeric"
1 => "Integer"
]
#dotPlaceholder: "YEdPXjrZ4cLZZ3wV"
}

Answer 1

If you are willing for another way to solve your problem, or a quick solution you can always use Validator class directly,
First add this to your controller,
use Illuminate\Support\Facades\Validator;
Then,
public function post(Request $request)
{
$validator = Validator::make($request->all(),[
'name' => ['required', 'max:10'],
'email' => ['required'],
]);
if ($validator->fails()) {
return redirect()->back()
->withErrors($validator);
}
echo "okey";
}

Answer 2

In my case I solved it by removing \Illuminate\Session\Middleware\ StartSession::class from 'middleware' in Kernel.php, leaving it in the 'web' group in the same file.

Answer 3

go on kernal.php and find web route and removed \Illuminate\Session\Middleware\StartSession::class,
then check all validation working fine