Description Resource Path Location Type Error while downloading 'http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd' in eclipse

Question

In my project's web.xml file, I'm defining configuration like this

<web-app
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xmlns="http://java.sun.com/xml/ns/javaee"
    xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_4_0.xsd"
    xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_4_0.xsd"
    id="WebApp_ID"
    version="4.0">

but eclipse give me this error

Error while downloading 'http://java.sun.com/xml/ns/javaee/web-app_4_0.xsd' to C:\Users\ftk1187\.lsp4xml\cache\http\java.sun.com\xml\ns\javaee\web-app_4_0.xsd.

I tried other things about this but it doesn't work. Where is the problem?