$messages = [
            'required'  => 'Harap bagian :attribute di isi.','unique'    => ':attribute sudah digunakan',];
        $validator = Validator::make($request->all(),[
            'username'    => array('required','unique:Userlogin,username'),'password' => 'required','email' => array('required',email'),$messages
        ]);

        if ($validator->fails()) { 
            return redirect('/')
                    ->withErrors($validator) // send back all errors to the login form
                    ->withInput();
        }else{
            return redirect('/')->with('status','Kami sudah mengirimkan email,silahkan di konfirmasi');   
        }

但它不起作用.该消息仍然与默认消息相同.我该如何解决这个问题,以便我可以使用我的自定义消息？