hi, when i add hibernate component to my web project with myeclipse, it occure the error message "the chosen operation is not currently available", and others work normal, such as struts, can anybody tell me why this problem happen, thank you.

Can you please post all the information we request in the Posting Guidelines thread at the top of this forum? That will give us some context so that we can determine if this is an installation issue, a configuration problem, or a bug. Thanks.