FormulairesController#create中的ActiveModel::ForbiddenAttributesError错误

class FormulairesController < ApplicationController
  def create
    @formulaire = Formulaire.new(formulaire_params)
    if @formulaire.save
      redirect_to @formulaire, notice: 'Formulaire was successfully created.'
    else
      render :new
    end
  end

  private

  def formulaire_params
    params.require(:formulaire).permit(:title, :content)
  end
end

<%= form_with(model: @formulaire, local: true) do |form| %>
  <% if @formulaire.errors.any? %>
    <div id="error_explanation">
      <h2><%= pluralize(@formulaire.errors.count, "error") %> prohibited this formulaire from being saved:</h2>
      <ul>
        <% @formulaire.errors.full_messages.each do |message| %>
          <li><%= message %></li>
        <% end %>
      </ul>
    </div>
  <% end %>

  <div class="field">
    <%= form.label :title %>
    <%= form.text_field :title %>
  </div>

  <div class="field">
    <%= form.label :content %>
    <%= form.text_area :content %>
  </div>

  <div class="actions">
    <%= form.submit %>
  </div>
<% end %>