错误:错误:未找到与给定名称匹配的资源(用于属性引用)

            android:padding="?attrs/disc_padding"

此attrs.xml文件:

<resources>
  <declare-styleable name="AccountParticle">
    <attr name="apStyle" format="enum">
      <enum name="header" value="0"/>
      <enum name="list_item" value="1"/>
    </attr>

    <attr name="text_margin_start" format="reference"/>
    <attr name="text_margin_end" format="reference"/>
    <attr name="text_margin_right" format="reference"/>
    <attr name="text_margin_left" format="reference"/>
    <attr name="disc_padding" format="reference"/>
    <attr name="disc_imageViewSize" format="reference"/>


  </declare-styleable>
</resources>

下面是styles.xml:

<style name="Theme.ap.header" parent="Theme.AppCompat">
    <item name="disc_padding">@dimen/account_menu_header_signed_in_avatar_margin_start</item>
  </style>

  <style name="Theme.ap.list_item" parent="Theme.AppCompat">
    <item name="disc_padding">@dimen/account_menu_account_list_item_avatar_margin_start</item>



      </style>

 error: Error: No resource found that matches the given name (at 'padding' with value '?attrs/disc_padding').

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