Ruby on rails Rails 5.2 ActiveStorage白名单参数

我正在更新到rails 5.2中的activestorage，并获得了一个“ 在我的创建操作中，未定义nil:NilClass的方法“[]=”。 我想问题与我的白名单上的情人有关。我试着按照指南去做，但还是不知道我遗漏了什么

我的模型附带了很多图片 我的控制器

  def create
    @product = Product.new(product_params)
    @product.images.attach(params[:product][:images])

    if @product.save
      redirect_to @product, notice: 'Product was successfully created.'
    else
      render :new
    end
  end
private
    def product_params
      params.require(:product).permit(:name, :description, :category_id, :tag_list, :partialone, :partialtwo, :partialthree, :shape, :earrings, :metalweight, :sizeone, :sizetwo, :metal, :totalweightone, :totalweighttwo, :meleequant, review_attributes: [:id, :rating, :text, :author, :name], images: [] )
    end

以下是完整的跟踪： 在（5.0.0）lib/acts_as_taggable_on/taggable/core.rb:206:in

process_dirty_object'
在（5.0.0）lib/act_as_taggable_on/taggable/core.rb:184:in

set_tag_list_on' 在（5.0.0）lib/acts_as_taggable_on/taggable/core.rb:45:in

tag_list='10
activemodel（5.2.1）lib/active\u model/attribute\u assignment.rb:51:in

public\u send' activemodel（5.2.1）lib/active\u model/attribute\u assignment.rb:51:in

\u assign\u attribute'
activemodel（5.2.1）lib/active\u model/attribute\u assignment.rb:44:in

block in\u assign\u attributes' activemodel（5.2.1）lib/active_model/attribute_assignment.rb:43:in

each'
activemodel（5.2.1）lib/active\u model/attribute\u assignment.rb:43:in

\u assign\u attributes' activerecord（5.2.1）lib/active\u record/attribute\u assignment.rb:23:in

\u assign\u attributes'
activemodel（5.2.1）lib/active\u model/attribute\u assignment.rb:35:in

assign\u attributes' activerecord（5.2.1）lib/active_record/core.rb:314:in

initialize'
activerecord（5.2.1）lib/active_record/heritation.rb:66:in

new' activerecord（5.2.1）lib/active_record/heritation.rb:66:in

new'
activerecord（5.2.1）lib/active_record/persistence.rb:52:in

create！' app/controllers/products\u controller.rb:65:in

create'
actionpack（5.2.1）lib/action\u controller/metal/basic\u implicit\u render.rb:6:in

send\u action' actionpack（5.2.1）lib/abstract\u controller/base.rb:194:in

process\u action'
actionpack（5.2.1）lib/action\u controller/metal/rendering.rb:30:in

process\u action' actionpack（5.2.1）lib/abstract\u controller/callbacks.rb:42:in

block in process\u action'
activesupport（5.2.1）lib/active\u support/callbacks.rb:132:in

run\u callbacks' actionpack（5.2.1）lib/abstract\u controller/callbacks.rb:41:in

process\u action'
actionpack（5.2.1）lib/action\u controller/metal/rescue.rb:22:in

process\u action' actionpack（5.2.1）lib/action_controller/metal/instrumentation.rb:34:in

block in process_action'
activesupport（5.2.1）lib/active_support/notifications.rb:168:in

仪表中的块' activesupport（5.2.1）lib/active_support/notifications/instrumenter.rb:23:in

instrument'
activesupport（5.2.1）lib/active_support/notifications.rb:168:in

instrument' actionpack（5.2.1）lib/action\u controller/metal/instrumentation.rb:32:in

process\u action'
actionpack（5.2.1）lib/action_controller/metal/params_wrapper.rb:256:in

process_action' activerecord（5.2.1）lib/active\u record/railties/controller\u runtime.rb:24:in

process\u action'
actionpack（5.2.1）lib/abstract_controller/base.rb:134:in

process' actionview（5.2.1）lib/action_view/rendering.rb:32:in

process'
actionpack（5.2.1）lib/action_controller/metal.rb:191:in

dispatch' actionpack（5.2.1）lib/action_controller/metal.rb:252:in

dispatch'
actionpack（5.2.1）lib/action_dispatch/routing/route_set.rb:52:in

dispatch' actionpack（5.2.1）lib/action_dispatch/routing/route_set.rb:34:in

service'
actionpack（5.2.1）lib/action_dispatch/journe/router.rb:52:in

block in service' actionpack（5.2.1）lib/action_dispatch/journe/router.rb:35:in

每个'
actionpack（5.2.1）lib/action_dispatch/journey/router.rb:35:in

service' actionpack（5.2.1）lib/action\u dispatch/routing/route\u set.rb:840:in

call'
典狱长（1.2.7）lib/warden/manager.rb:36:in

block in call' 典狱长（1.2.7）lib/warden/manager.rb:35:in

catch'
典狱长（1.2.7）lib/warden/manager.rb:35:in

call' rack（2.0.5）lib/rack/tempfile_reaper.rb:15:in

call'
机架（2.0.5）lib/rack/etag.rb:25:in

call' rack（2.0.5）lib/rack/conditional_get.rb:38:in

call'
机架（2.0.5）lib/rack/head.rb:12:in

call' actionpack（5.2.1）lib/action\u dispatch/http/content\u security\u policy.rb:18:in

call'
机架（2.0.5）lib/rack/session/abstract/id.rb:232:in

context' 机架（2.0.5）lib/rack/session/abstract/id.rb:226:in

call'
actionpack（5.2.1）lib/action_dispatch/middleware/cookies.rb:670:in

call' activerecord（5.2.1）lib/active_record/migration.rb:559:in

call'
actionpack（5.2.1）lib/action_dispatch/middleware/callbacks.rb:28:in

block in call' activesupport（5.2.1）lib/active\u support/callbacks.rb:98:in

run\u callbacks'
actionpack（5.2.1）lib/action_dispatch/middleware/callbacks.rb:26:in

call' actionpack（5.2.1）lib/action\u dispatch/middleware/executor.rb:14:in

call'
actionpack（5.2.1）lib/action\u dispatch/middleware/debug\u exceptions.rb:61:in

call' web控制台（3.5.1）lib/web_控制台/中间件。rb:135:in

call_app'
web控制台（3.5.1）lib/web_控制台/中间件。rb:28:in

block-in调用' web控制台（3.5.1）lib/web_控制台/中间件。rb:18:in

catch'
web控制台（3.5.1）lib/web_控制台/中间件。rb:18:in

call' actionpack（5.2.1）lib/action\u dispatch/middleware/show\u exceptions.rb:33:in

call'
railties（5.2.1）lib/rails/rack/logger.rb:38:in

call_app' railties（5.2.1）lib/rails/rack/logger.rb:26:in

block-in调用'
activesupport（5.2.1）lib/active\u support/taged\u logging.rb:71:in

block in taged' activesupport（5.2.1）lib/active\u support/taged\u logging.rb:28:in

taged'
activesupport（5.2.1）lib/active\u support/taged\u logging.rb:71:in

taged' railties（5.2.1）lib/rails/rack/logger.rb:26:in

call'
链轮轨道（3.2.1）lib/sprockets/rails/quiet_assets.rb:13:in

call' actionpack（5.2.1）lib/action_dispatch/middleware/remote_ip.rb:81:in

call'
request_store（1.4.1）lib/request_store/middleware.rb:19:in

call' actionpack（5.2.1）lib/action\u dispatch/middleware/request\u id.rb