Hi, I freshly installed jbpm-bpel-1.1.Beta3 and jboss-4.2.0.CR. I was able to deploy both archives: jbpm-bpel.sar jbpm-bpel.war. But when I try to deploy hello-process.zip with anonymous wrote : ant deploy-definition I get the following error: .. | 16:17:26,090 INFO [TomcatDeployer] deploy, ctxPath=/jbpm-bpel, warUrl=.../tmp/deploy/tmp55758jbpm-bpel-exp.war/ | 16:26:13,331 INFO [[/jbpm-bpel]] processDeployServlet: deploying process definition: file=file:/home/frank/tmp/jbpm-bpel-1.1.Beta3/examples/hello/target/hello-process.zip | 16:26:14,431 INFO [BpelReader] read wsdl definitions: hello.wsdl | 16:26:15,272 ERROR [[processDeployServlet]] Servlet.service() for servlet processDeployServlet threw exception | java.lang.NoSuchMethodError: org.jaxen.expr.Expr.accept(Lorg/jaxen/expr/Visitor;)V | at org.jbpm.bpel.sublang.xpath.XPathEvaluatorFactory$ExprValidator.validate(XPathEvaluatorFactory.java:134) | at org.jbpm.bpel.sublang.xpath.XPathEvaluatorFactory.createExpressionEvaluator(XPathEvaluatorFactory.java:100) | at org.jbpm.bpel.sublang.xpath.XPathEvaluatorFactory.createEvaluator(XPathEvaluatorFactory.java:59) | at org.jbpm.bpel.sublang.def.Expression.parse(Expression.java:55) | .. I've found the class org/jaxen/expr/Visitor in the archive jaxen.jar, which is part of jbpm-bpel.sar Does anybody know how to prevent this error? Best regards, Frank View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4033444#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...