A pseudo attribute name is expected问题

[yieryi521]

A pseudo attribute name is expected. web.xml Firstpro/WebRoot/WEB-INF line 1 XML Problem
今天运行tomcat时出来的，这是什么原因产生的？怎么解决？谢谢啦

[yieryi521]

<?xml version="1.0", encoding="UTF-8"?>
<!DOCTYPE web-app PUBLIC
"-//Sun Microsystems,Inc.//DTD Web Application2.3//EN"
"http://java.sun.com/j2ee/dtds/web-app_2_3.dtd">


<web-app>
<servlet>
<servlet-name>dispatcher</servlet-name>
<servlet-class>mypackage.DispatcherServlet</servlet-class>
</servlet>

<servlet-mapping>
<servlet-name>dispatcher</servlet-name>
<url-pattern>/dispatcher</url-pattern>
</servlet-mapping>

<servlet>
<servlet-name>Helloservlet</servlet-name>
<servlet-class>mypackage.HelloServlet</servlet-class>
</servlet>

<servlet-mapping>
<servlet-name>Helloservlet</servlet-name>
<url-pattern>/hello</url-pattern>
</servlet-mapping>



<taglib>
<taglib-uri>/mytaglib</taglib-uri>
<taglib-location>/WEB-INF/mytaglib.tld</taglib-location>
</taglib>

</web-app>

[scean_1]

<?xml version="1.0" encoding="UTF-8"?>第一行没逗号吧。