Problem with form:model and null variable, Missing required parameter for [Route: roles.update] [Missing parameter: Assignmentrole]

Question

Good day to all what happens is I have a problem when using a form:model since it tells me that there is no variable to pass and then reviewing the case is very rare.

this my controller.

   public function store(Request $request)
    {

        $request->validate([
            'name'=>'required']);

        $role = Role::create(['name' => $request->name]);
            
        // actualiza los permisos / sincroniza los permisos
        $role->permissions()->sync($request->permissions);
    
            return redirect()->route('roles.edit',$role)->with('info','el rol se creo con exito');
       
        }

and this the variable with dd($role)

but when i see the dd in the form:model i can see this , the variable is not the same

        <div class="max-w-7xl mx-auto sm:px-6 lg:px-8">
            <div class="bg-white overflow-hidden shadow-xl sm:rounded-lg">
             
                {!! Form::model($role,['route' => ['roles.update',$role],'method'=> 'put', 'class' => 'm-8 item-center']) !!}
                <div class="form-group">
                    {!! Form::label('name','Nombre del rol')!!}
                    {!! Form::text('name',null,['class' => 'form-control block mt-1 w-full','placeholder' => 'ingrese su nuevo rol'])!!}
                </div>

                <h2 class="h3 mt-3 mb-3">Lista de permisos</h2>


               
               

                <div class="mb-3">
                    <label class="mb-3">
                        {!! Form::checkbox ('selectall',null,null,['class'=> 'mr-1','id' => "selectall"])!!}
                        Seleccionar todos los permisos
                    </label>
                </div>

                @foreach ($permisos as $item)

                <div>
                    <label >
                        {!! Form::checkbox ('permisos[]',$item->id,null,['class'=> 'mr-1 permisos'])!!}
                        {{$item->description}}
                    </label>
                </div>
                <script src="https://ajax.googleapis.com/ajax/libs/jquery/1.10.2/jquery.min.js"></script>
        
                <script>
                  $("#selectall").on("click", function() {  
                      $(".permisos").prop("checked", this.checked);  
                      });  
                    
                      // if all checkbox are selected, check the selectall checkbox and viceversa  
                      $(".permisos").on("click", function() {  
                        if ($(".permisos").length == $(".permisos:checked").length) {  
                          $("#selectall").prop("checked", true);  
                        } else {  
                          $("#selectall").prop("checked", false);  
                        }  
                    });
                  </script>
                @endforeach
                
               
                {!! Form::submit('Editar rol',['class' => ' mt-3 inline-flex items-center justify-center px-4 py-2 bg-red-600 border border-transparent rounded-md font-semibold text-xs text-white uppercase tracking-widest hover:bg-red-500 focus:outline-none focus:border-red-700 focus:ring focus:ring-red-200 active:bg-red-600 disabled:opacity-25 transition'])!!}
     {!! Form::close() !!}

    </div>
        </div>
            </div>

thank you , if someone help me to solve this problem