I have created some HQL's for Nhiberante 2.1.0 Alpha2
example

Select new SomeClass(k.Ident, Sum(k.Qty),Max(k.ProductName))
From OrderItem k
Group by k.Ident
Order by sum(k.Qty) desc

Work's fine!!

Nhiberante 2.1.0 Alpha3 Release notes.
....
* Antlr3.Runtime.dll is required
.....

The same class build with this version of NHibernate returns error with no meanig to me, what is wrong here.

"Exception of type 'Antlr.Runtime.EarlyExitException' was thrown. [Select new ......
StackTrace:
at NHibernate.Hql.Ast.ANTLR.ErrorCounter.ThrowQueryException()
at NHibernate.Hql.Ast.ANTLR.HqlSqlGenerator.Generate()
at NHibernate.Hql.Ast.ANTLR.QueryTranslatorImpl.DoCompile(IDictionary`2 replacements, Boolean shallow, String collectionRole)
at NHibernate.Hql.Ast.ANTLR.QueryTranslatorImpl.Compile(IDictionary`2 replacements, Boolean shallow)
at NHibernate.Engine.Query.HQLQueryPlan..ctor(String hql, String collectionRole, Boolean shallow, IDictionary`2 enabledFilters, ISessionFactoryImplementor factory)
at NHibernate.Engine.Query.HQLQueryPlan..ctor(String hql, Boolean shallow, IDictionary`2 enabledFilters, ISessionFactoryImplementor factory)
at NHibernate.Engine.Query.QueryPlanCache.GetHQLQueryPlan(String queryString, Boolean shallow, IDictionary`2 enabledFilters)
at NHibernate.Impl.AbstractSessionImpl.GetHQLQueryPlan(String query, Boolean shallow)
at NHibernate.Impl.AbstractSessionImpl.CreateQuery(String queryString).....


Any body have an idea, how to solve this problem.

Thank you