ivy antlib shemalocation

<?xml version="1.0" encoding="UTF-8"?>
<project name="yourproject"
         xmlns:ivy="antlib:org.apache.ivy.ant"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://ant.apache.org/ivy/schemas/ivy.xsd"
>