你好，我得到了错误：缺少参数或值为空：运动
我有一个创建新活动的链接：

<%= button_to 'Start 14 days free trial', select_campaign_type_path(campaign_type: 1), method: :patch, class: 'py-4 px-10 w-full text-white font-semibold rounded-xl focus:ring focus:ring-indigo-300 bg-indigo-600 hover:bg-indigo-700 transition ease-in-out duration-200' %>

我的控制器动作中：

def select_campaign_type
    @campaign = current_user.campaigns.build(campaign_params)
    redirect_to new_campaign_path(@campaign), status: :see_other and return if @campaign.campaign_type.blank?

    respond_to do |format|
      if @campaign.save
        puts "Hey"
        format.html { redirect_to step1_campaign_path(@campaign), status: :found }
      else
        format.html { render :new, status: :unprocessable_entity }
      end
    end
  end

在我的活动参数中：

def campaign_params
  params.require(:campaign).permit(:campaign, :campaign_type)
end

路线

patch :select_campaign_type, to: "campaigns#select_campaign_type", as: :select_campaign_type

如果我删除require（：campaign），那么我将得到相同的错误：utf8，_authenticity_token和：method。