Should be inside your struts distro for example Struts 2.0.1 inside the lib folder you *should* see common-validator-1.3.0.jar let us know if ou dont see it safest place is to place commons-validator*.jar is in $CATALINA_BASE/webapps/YourWebApp/WEB-INF/lib
There are also jars available from http://jakarta.apache.org/commons/validator/ (but you should take jar from the released distro) HTH This e-mail communication and any attachments may contain confidential and privileged information for the use of the designated recipients named above. If you are not the intended recipient, you are hereby notified that you have received this communication in error and that any review, disclosure, dissemination, distribution or copying of it or its contents ----- Original Message ----- From: "red phoenix" <[EMAIL PROTECTED]> To: "Struts Users Mailing List" <user@struts.apache.org> Sent: Wednesday, November 29, 2006 8:08 PM Subject: org.apache.commons.validator not exist >I compile my Java file,but it raise error:org.apache.commons.validator not > found,I guess I must lost a jar file,but I don't know which jar I > lost,anyone could tell me which jar I need? > > Thanks. >