Bibernate 3.1 on Tomcat 5.5 getting Exception "No TransactionManagerLookup specified" regardless of config details. ------------------------------------------------------------------------------------------------------------------- Key: HHH-1163 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-1163 Project: Hibernate Core Issue Type: Bug Environment: Hibernate 3.1rc2, Windows XP, Tomcat 5.5, MyEclipse 4 (Eclipse 3.1) MySQL 4.1 Reporter: Ivo Klaic The details of the configuration are varied and many and they all ultimately result in "java.io.IOException: org.hibernate.HibernateException: No TransactionManagerLookup specified". I had the application working quite well in hibernate 2.1 and migrated to 3 then 3.1 and continue to experience the same problem. My question is "Does Hibernate 3.X run on Tomcat 5..5?" If it does it would be of great then the hibernate team should help the user community by publishing the correct deployment information as what is currently available from all available source is poorly put together and does not work. Frustrated and getting more diappointed by the day!