Why do I get a "Module not specified" error when installing a module?

Question

Joomla

Warning
Module Install: Module not specified
Error
Error installing module
Here is the entire installation code of mod_filterjs.xml

<?xml version="1.0" encoding="utf-8"?>
<extension type="module" version="3.1.0" client="site" method="upgrade">
  <name>Module Filter JS</name>
  <author>Dmitriy</author>
  <creationDate>January 2019</creationDate>
  <version>1.0</version>
  <license>Open Source License, GNU GPL</license>
  <description>MOD_FILTERJS_XML_DESC</description>
  <files>
    <filename>mod_filterjs.xml</filename>
    <filename name="mod_filterjs">mod_filterjs.php</filename>
    <filename>helper.php</filename>
    <filename>index.html</filename>
    <filename>css/style.css</filename>
    <filename>css/index.html</filename>
    <filename>js/show.js</filename>
    <filename>js/index.html</filename>
    <filename>tmpl/default.php</filename>
    <filename>tmpl/index.html</filename>
  </files>
  <languages>
    <language tag="ru_RU">language/ru-RU.mod_filterjs.ini</language>
    <language tag="ru_RU">language/ru-RU.mod_filterjs.sys.ini</language>
  </languages>
  <config>
    <fields name="params">
      <fieldset name="basic">
        <field
          type="text"
          name="moduleclass_sfx"
          label="MOD_MODULECLASS_SFX_LABEL"
          description="MOD_MODULECLASS_SFX_DESC" />
        <field
          type="text"
          name="num_users"
          default="3"
          label="MOD_NUM_USERS_LABEL"
          description="MOD_NUM_USERS_DESC"/>
      </fieldset>
    </fields>
  </config>
</extension>