Not able to Install Schema in Scheduler Configuration

Hi,

Bi Publisher is installed and able to get the report. Reports should be scheduled and tried to do Scheduler Configuration. JNDI Data source has been created in our Weblogic.

Not able to Install Schema in Scheduler Configuration and we observed following error in our log.

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Root cause of ServletException.
java.lang.NoClassDefFoundError: oracle/xml/parser/schema/XSDElement
        at java.lang.Class.getDeclaredConstructors0(Native Method)
        at java.lang.Class.privateGetDeclaredConstructors(Class.java:2389)
        at java.lang.Class.getConstructor0(Class.java:2699)
        at java.lang.Class.newInstance0(Class.java:326)
        at java.lang.Class.newInstance(Class.java:308)
        Truncated. see log file for complete stacktrace