[Deploying Sakai] Portfolio not working

[prabhu]

Hi,
           I converted the sakai database from 2.6.3 to 2.7.0. Everything
works fine, but when i click on portfolio am getting the below error, help
me with your suggestions.. please


 ERROR http-8080-Processor22
org.apache.catalina.core.ContainerBase.[Catalina].[localhost].[/osp-presentation-tool].[springapp]
- Servlet.service() for servlet springapp threw exception
java.lang.IllegalArgumentException
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
        at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:597)
        at
org.hibernate.property.BasicPropertyAccessor$BasicSetter.set(BasicPropertyAccessor.java:42)
        at
org.hibernate.tuple.entity.AbstractEntityTuplizer.setPropertyValues(AbstractEntityTuplizer.java:329)
        at
org.hibernate.tuple.entity.PojoEntityTuplizer.setPropertyValues(PojoEntityTuplizer.java:232)
        at
org.hibernate.persister.entity.AbstractEntityPersister.setPropertyValues(AbstractEntityPersister.java:3557)
        at
org.hibernate.engine.TwoPhaseLoad.initializeEntity(TwoPhaseLoad.java:133)
        at
org.hibernate.loader.Loader.initializeEntitiesAndCollections(Loader.java:854)
        at org.hibernate.loader.Loader.doQuery(Loader.java:729)
        at
org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:236)
        at org.hibernate.loader.Loader.doList(Loader.java:2217)
        at
org.hibernate.loader.Loader.listIgnoreQueryCache(Loader.java:2108)
        at org.hibernate.loader.Loader.list(Loader.java:2103)
        at org.hibernate.loader.hql.QueryLoader.list(QueryLoader.java:378)
        at
org.hibernate.hql.ast.QueryTranslatorImpl.list(QueryTranslatorImpl.java:340)
        at
org.hibernate.engine.query.HQLQueryPlan.performList(HQLQueryPlan.java:172)
        at org.hibernate.impl.SessionImpl.list(SessionImpl.java:1122)
        at org.hibernate.impl.QueryImpl.list(QueryImpl.java:79)
        at
org.springframework.orm.hibernate3.HibernateTemplate$34.doInHibernate(HibernateTemplate.java:1024)
        at
org.springframework.orm.hibernate3.HibernateTemplate.doExecute(HibernateTemplate.java:419)
        at
org.springframework.orm.hibernate3.HibernateTemplate.executeWithNativeSession(HibernateTemplate.java:374)
        at
org.springframework.orm.hibernate3.HibernateTemplate.findByNamedQueryAndNamedParam(HibernateTemplate.java:1015)
        at
org.theospi.portfolio.presentation.model.impl.PresentationManagerImpl.findSharedPresentations(PresentationManagerImpl.java:922)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)



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Thanks

Prabhu Janakaraj,
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