By convention, $request->validate([]) will return the errors to the view. However you are assigning it to a variable ($validatedData) so laravel thinks that you are treating the data anyways.

Just remove the assigment of $validatedData and laravel will return it for you:

public function store(Request $request)

{
$request->validate([
'name' => 'required|max: 10',
'avatar' => 'required|image',
'slug' => 'required',
'description' => 'required',
]);
...
}

By convention, $request->validate([]) will return the errors to the view. However you are assigning it to a variable ($validatedData) so laravel thinks that you are treating the data anyways.

thanks but makes no difference, only refresh the view

try this

$this->validate($request, [ 'name' => 'required|max: 10', 'avatar' => 'required|image', 'slug' => 'required', 'description' => 'required', ]);

$this->validate($request, [ 'name' => 'required|max: 10', 'avatar' => 'required|image', 'slug' => 'required', 'description' => 'required', ]);

try this but return this error:

Symfony\Component\Debug\Exception\FatalThrowableError thrown with message "Argument 1 passed to LaraDex\Http\Controllers\Controller::validate() must be an instance of Illuminate\Http\Request, array given, called in /Users/jerefigueroa/.bitnami/stackman/machines/xampp/volumes/root/htdocs/laravel/cursoLaravel/app/Http/Controllers/TrainerController.php on line 63"

Please make sure that the form action is pertaining to the controller on which your store method is defined.

that's ok

can you please do {{ $errrors ? dd($errors) : null }}

And post here what you got

i got this

but this way:

@if ($errors->any())
        {{ $errors ? dd($errors) : null }}
        <div class="alert alert-danger">
            <ul>
                @foreach ($errors->all() as $message)
                <li>{{ $message }}</li>
                @endforeach
            </ul>
        </div>
    @endif

makes no difference, refresh the view