Weblogic 12c deployment xml errors - weblogic

Question

I'm newbie to weblogic. I tried to deploy an application, but I got the following errors:
Unable to access the selected application.
Exception in AppMerge flows' progression
Exception in AppMerge flows' progression
VALIDATION PROBLEMS WERE FOUND problem: cvc-complex-type.2.4a: Expected elements
'filter-class#http://java.sun.com/xml/ns/javaee async-supported
#http://java.sun.com/xml/ns/javaee init-param
#http://java.sun.com/xml/ns/javaee'
instead of 'description#http://java.sun.com/xml/ns/javaee' here in element
filter
#http://java.sun.com/xml/ns/javaee:<null>
problem: cvc-complex-type.2.4b: Element not allowed:
description#http://java.sun.com/xml/ns/javaee in element init-param
#http://java.sun.com/xml/ns/javaee:<null>
problem: cvc-complex-type.2.4b: Element not allowed: description
#http://java.sun.com/xml/ns/javaee in element init-param
#http://java.sun.com/xml/ns/javaee:<null>
problem: cvc-complex-type.2.4a: Expected elements 'servlet-class
#http://java.sun.com/xml/ns/javaee jsp-file
#http://java.sun.com/xml/ns/javaee init-param
#http://java.sun.com/xml/ns/javaee load-on-startup
#http://java.sun.com/xml/ns/javaee enabled
#http://java.sun.com/xml/ns/javaee async-supported
#http://java.sun.com/xml/ns/javaee run-as
#http://java.sun.com/xml/ns/javaee security-role-ref
#http://java.sun.com/xml/ns/javaee multipart-config
#http://java.sun.com/xml/ns/javaee' instead of 'display-name
#http://java.sun.com/xml/ns/javaee' here in element servlet
#http://java.sun.com/xml/ns/javaee:<null>
problem: cvc-complex-type.2.4a: Expected elements 'servlet-class
#http://java.sun.com/xml/ns/javaee jsp-file
#http://java.sun.com/xml/ns/javaee init-param
#http://java.sun.com/xml/ns/javaee load-on-startup
#http://java.sun.com/xml/ns/javaee enabled
#http://java.sun.com/xml/ns/javaee async-supported
#http://java.sun.com/xml/ns/javaee run-as
#http://java.sun.com/xml/ns/javaee security-role-ref
#http://java.sun.com/xml/ns/javaee multipart-config
#http://java.sun.com/xml/ns/javaee' instead of 'display-name
#http://java.sun.com/xml/ns/javaee' here in element servlet
#http://java.sun.com/xml/ns/javaee:<null>
problem: cvc-complex-type.2.4a: Expected elements 'servlet-class
#http://java.sun.com/xml/ns/javaee jsp-file
#http://java.sun.com/xml/ns/javaee init-param
#http://java.sun.com/xml/ns/javaee load-on-startup
#http://java.sun.com/xml/ns/javaee enabled
#http://java.sun.com/xml/ns/javaee async-supported
#http://java.sun.com/xml/ns/javaee run-as
#http://java.sun.com/xml/ns/javaee security-role-ref
#http://java.sun.com/xml/ns/javaee multipart-config
#http://java.sun.com/xml/ns/javaee' instead of 'display-name
#http://java.sun.com/xml/ns/javaee' here in element servlet
#http://java.sun.com/xml/ns/javaee:<null>
I tried to find weblogic.xml and web.xml, but there is just a war file. How can I modify the xxmls in the war?
Thanks for any responses.
Allen