I work in a web application with NetBeans but I get the following error:
Any idea how to solve it?
This is the web.xml file
The problem is in the servlet definition. You must define the servlet in the following way in the web.xml file:
<servlet-config>
<servlet-name>autenticacion</servlet-name>
<servlet-class>el.paquete.de.tu.Clase</servlet-class>
</servlet-config>