Invalid content was found starting with element 'taglib'.

Error says on eclipse
cvc-complex-type.2.4.a: Invalid content was found starting with element 'taglib'. One of '{"http:// java.sun.com/xml/ns/j2ee":description, http://java.sun.com/xml/ns/j2ee":display-name, "http://java.sun.com/xml/ns/j2ee":icon, http://java.sun.com/xml/ns/j2ee":distributable, "http://java.sun.com/xml/ns/j2ee":context-param, "http://java.sun.com/xml/ns/j2ee":filter, "http://java.sun.com/xml/ns/j2ee":filter-mapping, "http://java.sun.com/xml/ns/j2ee":listener, "http://java.sun.com/xml/ns/j2ee":servlet, "http://java.sun.com/xml/ns/j2ee":servlet-mapping, "http://java.sun.com/xml/ns/j2ee":session-config, "http://java.sun.com/xml/ns/j2ee":mime-mapping, "http://
java.sun.com/xml/ns/j2ee":welcome-file-list, http://java.sun.com/xml/ns/j2ee":error-page, "http:// java.sun.com/xml/ns/j2ee":jsp-config, "http://java.sun.com/xml/ns/j2ee":security-constraint, "http://java.sun.com/xml/ns/j2ee":login-config, "http://java.sun.com/xml/ns/j2ee":security-role, "http://
java.sun.com/xml/ns/j2ee":env-entry, "http://java.sun.com/xml/ns/j2ee":ejb-ref, "http:// java.sun.com/xml/ns/j2ee":ejb-local-ref, "http://java.sun.com/xml/ns/j2ee":service-ref, "http://java.sun.com/xml/ns/j2ee":resource-ref, "http://java.sun.com/xml/ns/j2ee":resource-env-ref, "http://
java.sun.com/xml/ns/j2ee":message-destination-ref, "http://java.sun.com/xml/ns/j2ee":message-
destination, "http://java.sun.com/xml/ns/j2ee":locale-encoding-mapping-list}' is expected.


Solution : is sub element of as simple as that.