I can not import users

I can not import users.

example xml-file:

<?xml version="1.0" encoding="UTF-8"?>

admin

***********

<Email>admin@example.com</Email>

Administrator

1460715307859

0

error.log:

2016.04.15 22:42:33 org.jivesoftware.openfire.plugin.UserSchemaValidator - ERROR: element “xs:schema” is not allowed here

2016.04.15 22:42:33 org.jivesoftware.openfire.plugin.UserSchemaValidator - ERROR: perhaps namespace URI “http://www.w3c.org/2001/XMLSchema” is incorrect?

2016.04.15 22:42:33 org.jivesoftware.openfire.plugin.UserSchemaValidator -

java.lang.NullPointerException

at com.sun.msv.verifier.Verifier.startDocument(Verifier.java:364)

at org.dom4j.io.SAXWriter.startDocument(SAXWriter.java:720)

at org.dom4j.io.SAXWriter.write(SAXWriter.java:198)

at org.jivesoftware.openfire.plugin.UserSchemaValidator.validate(UserSchemaValidat or.java:63)

at org.jivesoftware.openfire.plugin.ImportExportPlugin.validateImportFile(ImportEx portPlugin.java:149)

at org.jivesoftware.openfire.plugin.userImportExport.import_002duser_002ddata_jsp. _jspService(import_002duser_002ddata_jsp.java:100)

at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)

Help me to understand, please.

here is the solution:

(solved) import/export plugin v.2.5.0